Java Scrip Reference

JavaScript Objects Methods & Properties
Select an Object and see the Properties and Methods associated with it 

 
 
 
Object Name: anchor

          An anchor is an area in a document where the visitor can be taken after clicking on
          a link. An example of an anchor would be the link you may have used in the
          JavaScript  Object table
 
          example: <A NAME="anchorname"> and the link to that section of the page would be
          <A HREF="#anchorname">
 
          Properties:
 
          The length Property

          This property returns a number equal to the length of the specified array or object.

          example: LENGTH=js.length
          Where LENGTH is the variable that  you want to assign the response to and js is
          one of objects listed below.
 
          Property of: anchor, elements, form, frame, history, link, radio, select, and window

           Methods: None
 
 
 
 
Object Name: button

The button object is used in forms to define a button. Name specifies the button's name, and value specifies the text on the face of the button. Buttons must be defined within the <FORM> and </FORM> tags.

An example of a button

example: <INPUT TYPE="button" name="Name" value="value">
 
Properties: 
 
The name Property
 

This property displays the name of the specified object.

 

example:  Name=object.name
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
text, textarea, and window
 

The value Property

          This property displays the value of the specified object

          example:  VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is the
          name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset, select, submit, and
          text
 
Methods:

      click()         Simulates a mouse click on a button
                        example:  nameofbutton.click()
 
 
 
 

Object Name: checkbox

A checkbox is one of those square boxes you can click on and off that i'm sure everyone has seen before. Checkboxes must be defined within the <FORM> and </FORM> tags.
A checkbox looks like this:
 


Checkbox 

example: <INPUT TYPE="checkbox" name="Name" value="value">
'checked' can also be added to the code to make the box checked when the page is loaded.
 
Properties:

The name Property
 

This property displays the name of the specified object.

 

example:  Name=object.name
Where Name is the variable that you want to assign the  response to and object is
one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select,

          submit, text, textarea, and window

The value Property

          This property displays the value of the specified object

          example:  VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is the
          name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset, select, submit, and
          text
 
The checked Property

          This property returns either a True or False which indicates if a specific checkbox
          or radio button is checked.

          example: var=checkbox.checked
          Where var is the variable you want to assign the response to and checkbox is the
          name of the checkbox or radio button.
 
          Property of: checkbox, and radio
 
The defaultChecked Property

          This property returns either a True or False which indicates the default selection
          status of a radio button or checkbox.

          example: var=checkbox.defaultChecked
          Where var is the variable you want to assign the response to and checkbox is
          the name of the checkbox or radio button.
 
          Property of: checkbox, and radio
 
Methods:
 
      click()     -   Simulates a mouse click on a button
                         example:  nameofbutton.click()
 
 
 
 

Object Name: date

 The date object is a very useful and sophisticated function. It allows you work with dates and time. Anything from years, days, hours, minutes, seconds, etc. JavaScript stores dates as the number of miliseconds that have elapsed since January 1, 1970, 00:00:00.

examples:

1. variable = new Date()
2. variable = new Date(hours, minutes, seconds)
3. variable = new Date(year, month, day)

The first example returns the current date.
The second example returns the current hour, minute, and second.
The third example returns the current year, month, and day.

Properties: None

Methods:
 
      getDate()      - Reads the day of the month for the defined date
                             example:  birthday=birthday.getDate()
 
      getDay()       - Reads a number representing the day of the week for the defined date
                             example:  weekday=birthday.getDay()
 
      getHours()    - Reads the hour of the defined date.
                             example:  hour=birthday.getHours()
 
      getMinutes() - Reads the minutes of the defined date
                             example: minutes=birthday.getMinutes()
 
      getMonth()   - Reads the month for the defined date
                            example:   month=birthday.getMonth()
 
      getSeconds() - Reads the seconds for the current time
                              example: seconds=birthday.getSeconds()
 
      getTime()     - Reads the numeric value for the time of the defined date
                            example: time=birthday.getTime()
 
      getTimeZoneOffset() - Reads the timezone offset in minutes for the current location
                                          example: offset=birthday.getTimeZoneOffset()
 
      getYear()       - Reads the year for the defined date
                              example: year=birthday.getYear()
 
      parse()          - Reads the number of milliseconds since 1/1/70 00:00:00
                              example:  timesince=parse(DateToparse)
 
      setDate()       - Sets the day of the month for the defined date
                              example: birthday.setDay(01)
 
      setHours()     - Sets the hours for the defined date
                              example:  birthday.setHours(16)
 
      setMinutes()  - Sets the minutes for the defined date
                              example:  birthday.setMinutes(25)
 
      setMonth()     - Sets the month for a defined date
                              example:  birthday.setMonth(03)
 
      setSeconds()-Sets the seconds for the defined date
                            example: birthday.setSeconds(24)
 
      setTime()      - Sets a variable to the value of the number of milliseconds since 1/1/70
                             example: birthday.setTime(milliseconds)
 
      setYear()      - Sets the year for the defined date
                             example: birthday.setYear(1982)
 
      toGMTString()  - Converts a date to a string using toGMTString
                                   example:  birthdayGMT=birthday.toGMTString()
 
      toLocaleString() - Converts a date to a string using the current toLocaleString
                                   example: birthdayLocale=birthday.toLocaleString()
 
      UTC()     - Displays the number of milliseconds in a date since 1/1/70  00:00:00, GMT
                      example: birthmilli=birthday.UTC()()
 
 
 

Object Name: document

The document is perhaps the single most important JavaScript function there is. It contains information on the current page, and provides ways of displaying HTML output to the viewer.

example: document.property or document.method
where property and method are something from the lists below.

Properties:
 
The alinkColor Property

          The alinkColor property sets the color of an active link on a webpage.

          example: document.alinkColor="color"
          Where color is either the name of the color or the hexadecimal value.
 
The bgColor Property

         This property specifies the webpage's background color.

          example: document.bgColor="color"
          Where color is either the name of the color or the hexadecimal value.
 
The cookie Property

          Using this property returns the contents of cookies.

          example:  ck=document.cookie
          Where ck is the variable you want to assign the response to.
 
The fgColor Property

          This property sets the webpage's text color.

          example:  document.fgColor="color"
          Where color is either the color name or the hexadecimal value of the color.
 
The lastModified Property

          Using this property returns a string that displays when the current page was last
          modified.

          example:  document.lastModified
 
The linkColor Property

          This property controls the link color of a webpage.

          example: document.linkColor="color"
          Where color is either the name of the color or a hexadecimal value representing the
           color.
 
The location Property

          This property displays the entire current URL.

          example:  CL=document.location
          Where CL is the variable that you want to assign the response to.
 
The title Property

          This property sets the title of the webpage.

          example:  document.title="MyTitle"
          Where MyTitle is the title you want for the webpage.
  
The vlinkColor Property

          This property defines the color of visited links in a webpage.

          example: document.vlinkColor="COLOR"
          Where COLOR is either the name of the color or a hexadecimal value which
          represents the color.
 
Methods:

clear()     - Clears the document
                  example: document.clear()
 
close()    - Closes the document
                 example:  document.close()
 
open()    - Opens the specified MIME type
                 example:  document.open({"mime"})
 
write()     - Writes text to the document
                 example: document.write("text")
 
writeln()   - Writes text to the document and adds a carriage return that is ignored by
                 HTML, so writeln() and write() are the same.
                example:  document.writeln("text")
 
 
 

Object Name: elements array

Accesses an array of objects in a form such as checkboxes, buttons, fields, etc. In the order that they appear. Remember, the first object in a form is always number 0. Not number 1.

Syntax: formname.elements[i] where i is the number of the object, and formname.elements.length

Properties:

          The length Property

          This property returns a number equal to the length of the specified array or object.
 

 example: LENGTH=js.length
 Where LENGTH is the variable that  you want to assign the response to and js is
 one of objects listed below.
 
 Property of: anchor, elements, form, frame, history, link, radio, select, and window

 
Methods: none
 
 
 
 

Object Name: form

The form object is used to create a form. Forms can contain fields, text areas, buttons, checkboxes, etc. All used for inputting data.

example: <FORM NAME="name" TARGET="target" ACTION="file" METHOD="POST/GET" ENCTYPE="encodingtype">

NAME defines the name of the form
TARGET defines the window that form results go to
ACTION defines where the form responses should be sent for processing. It can be a CGI script, an email address, almost anything.
METHOD can be either POST or GET. It defines how the form responses are sent to the server.
ENCTYPE defines the MIME data encoding type for the form.
 
Properties:

The action Property

          The action property sets the destination URL for data that is
          sent from a form.

          example:  form.action="Actiontotake"
          Where form is the name of the form and Actiontotake is the URL where the data
          should be sent.
 
The encoding Property

          This property pertains to a string that represents the type of MIME encoding used
          for a form.

          example:  EncodingType=form.encoding
          Where EncodingType is the variable that you want the response assigned to.

          The length Property

         This property returns a number equal to the length of the specified array or object.

 
example: LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.
 
Property of: anchor, elements, form, frame, history, link, radio, select, and window
 

The method Property

          This property tells the viewer's browser how to send field input from forms to the
          server.

          example:  form.method
 
The target Property

          This property tells the browser where to send form responses when using a form,
          and it tells the browser where to open pages when using links.

          example: form.target="TARGET"
          Where TARGET is the name of the window.
 
          Property of: form, link, and location

Methods:
 
submit()  - Submits the the defined form
                 example: NameOfForm.submit()
 
 
 
 

Object Name: frame

The frame object is used to define frames. Frames are becoming increasingly popular on the internet. They offer increased navigability and faster load times.

example: <FRAMESET ROWS="ROWS" COLS="COLS"> <FRAME SRC="file" NAME="name"> </FRAMESET>

COLS specifies the width of the columns. Can be either two values seperated by a comma, or a percent of the screen.
 
ROWS speicifes the width of the rows. Can be either two values seperated by a comma, or a percent of the screen.
 
For each frame you want, you have to specify the file and name of the frame using the <FRAME> tag.
 
SRC tells the browser the name of the file that should be displayed in the frame.
NAME gives the frame a name.
 
Properties:

           The name Property
 
                    This property displays the name of the specified object.

          example: Name=object.name
 
          Where Name is the variable that you want to assign the response to and object is
          one of the objects listed below.

          Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
          text, textarea, and window

          The length Property

         This property returns a number equal to the length of the specified array or object.

 

example:  LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.

 

Property of: anchor, elements, form, frame, history, link, radio, select, and window

          The parent Property

          This property is a synonym for a window that contains the current frame.

          example: Window=frame.parent
          Where Window is the variable that you want to assign the response to.
 
         Property of: frame, and window
 
The pathname Property

          Returns a string specifying the url-path protion of the URL.

          example:  Path=link.pathname
          Where Path is the variable that  you want to assign the response to.
 
          Property of: frame, and window
 
Methods:
 
   clearTimeout()     - Clears the setTimeout command
                                 example: NameOfFrame.clearTimeout(TimerIDVariable)
 
   setTimeout()        - Runs JavaScript code for a certain number of milliseconds
                                 example: NameOfFrame.setTimeout("String",msecs)
 
 

Object Name: hidden

 The hidden object is used in forms to hide a text input field from the viewer. The field is still there, but cannot be accessed or seen. Useful for adding pre-defined data to forms. As with all other form related objects, a hidden field must be defined inside the <FORM> and </FORM> tags.

example: <INPUT TYPE="hidden" NAME="name" VALUE="value">
Where NAME is the name of the field, and VALUE is the data in the field.

Properties:

The name Property
 

This property displays the name of the specified object.

 

example: Name=object.name
Where Name is the variable that you want to assign the response to and object is one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select,

          submit, text, textarea, and window

The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you  want to assign the responses to, form is
          the name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset, select, submit, and
          text
 
The defaultValue Property
 
          This property sets a string as the default value for a password, text, textarea, or
          hidden field.
 
          example: Field.defaultValue="Text"
          Where Field is the name of the field, and Text is the value you want to set it to.
 
          Property of: hidden, password, text, and textarea
 
Methods: None
 
 
 
 

Object Name: history

The history object holds information about the viewer's browser session. Data consists of number of sites visited, their URLs, and their names. This object is especially useful for making JavaScript based navigation systems.

example:  history.property or history.method
where property or method is one from the list below.
 
Properties:

          The length Property

         This property returns a number equal to the length of the specified array or object.

 

Syntax: LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.

 

Property of: anchor, elements, form, frame, history, link, radio, select, and window

 
Methods:

      back()       - Loads the previous URL from the history file
                         example: history.back
 
      forward()  - Loads the next URL in the history file
                         example:  history.forward
 
      go()          - Loads a URL from the histroy list, num is an integer representing a
                         page number
                         example: history.go(num | "URL")
 
 
 
 

Object Name: link

The link objects creates HTML hyperlinks using JavaScript.

example: <HREF="location" NAME="name" TARGET="target">
Where HREF is the URL of the file to go to when the link is clicked, MAME is the name of the link, and TARGET is the area name that you want the link to be displayed in. TARGET is only applicable when using links in frames or multiple windows.
 
Properties:
 
The hash Property

          Using this property returns a string that begins with a has mark (#) and represents
          the anchor name that the viewer is currently at in the document.

          example:  Anchor=link.hash
          Where Anchor is the value that you want to assign the responses to.
          Property of: link, and location
 
The host Property

          Using this property returns the host:port section of the URL, which tells you the
          host name.

          example:  Hostname=link.host
          Where Hostname is the variable that you want to assign the responses to.
          Property of: link, and location
 
The hostname Property

          This property returns the domain name or IP address of the referenced host.

          example: Host=location.hostname
          Where Host is the variable that you want to assign the response to.
          Property of: link, and location
 
The href Property

          Using this property returns a string equal to the whole referenced URL.

          example:  var=link.href
          Where var is the variable that you want to assign the response to.
          Property of: link, and location

           The length Property

         This property returns a number equal to the length of the specified array or object.

 
example: LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.
 
Property of: anchor, elements, form, frame, history, link, radio, select, and window

 
The port Property

          This property displays the communications port of the server.
 
          example:  commport=link.port
          Where commport is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The protocol Property

          This property displays the protocol of the current page (HTTP,FTP, etc.)

         example: proto=link.protocol
          Where proto is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The referrer Property

          This property returns the calling URL. Usually the page that the viewer came from.

          example: document.referrer
 
The search Property

          This property displays a string that begins with a question mark and represents the
          search query in a specified URL.

          example: URLSearch=link.search
          Where URLSearch is the variable that you want to assign the response to.
 
          Property of: link, and location
   
The target Property

          This property tells the browser where to send form responses when using a form,
          and it tells the browser where to open pages when using links.

          example:  form.target="TARGET"
          Where TARGET is the name of the window.
 
          Property of: form, link, and location
 
Methods: None
 
 
 
 

Object Name: location

The location object holds information about the current URL. Each property of the location object pertains to a different part of the URL.

example: window.location.property
Where window is the current window or the window you want to use it with and property is a property from the list below.
 
Properties:
 
The hash Property

          Using this property returns a string that begins with a has mark (#) and represents
          the anchor name that the viewer is currently at in the document.

          example: Anchor=link.hash
          Where Anchor is the value that you want to assign the responses to.
          Property of: link, and location
 
The host Property

          Using this property returns the host:port section of the URL, which tells you the host
          name.

          example: Hostname=link.host
          Where Hostname is the variable that you want to assign the responses to.
 
          Property of: link, and location
 
The hostname Property

          This property returns the domain name or IP address of the referenced host.

          example: Host=location.hostname
          Where Host is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The href Property

          Using this property returns a string equal to the whole referenced URL.

          example: var=link.href
          Where var is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The port Property
 
          This property displays the communications port of the server.
 
          example: commport=link.port
          Where commport is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The protocol Property

          This property displays the protocol of the current page (HTTP,FTP, etc.)

          example:  proto=link.protocol
          Where proto is the variable that  you want to assign the response to.
 
          Property of: link, and location
 
The search Property

          This property displays a string that begins with a question mark and represents the
          search query in a specified URL.

          example: URLSearch=link.search
          Where URLSearch is the variable that you want to assign the response to.
 
          Property of: link, and location
 
The target Property

          This property tells the browser where to send form responses when using a form,
          and it tells the browser where to open pages when using links.

          example: form.target="TARGET"
          Where TARGET is the name of the window.
 
          Property of: form, link, and location
 
Methods: None
 
 
 
 

Object Name: math

An object that has math values stored as properties and methods. Certain math functions that you take for granted on a calculator such as the value of Pi are stored here.

example: Math.property or Math.method
where property or method are one from the list below.
 
Properties:

The E Property

          This property returns Euler's constant, which is the base of natural logarithms, and
          is aproximately equal to 2.718.

          example: Euler=Math.E
          Where Euler is the variable that you want to assign the reponse to.
 
The LN2 Property

          This value displays the natural logarithim of two, which is aproximately 0.693.

          example: Log=Math.LN2
          Where Log is the variable that you want to assign the response to.
 
The LN10 Property

          This value returns the natural logarithim of ten, which is aproximately 2.302.

          example: Log=Math.LN10
          Where Log is the variable that you want to assign the response to.
 
The LOG2E Property

          This property returns the base two logarithim of e, which is aproximately 1.442.

          example: Log=Math.LOG2E
          Where Log is the variable that you want to assign the response to.
 
The LOG10E Property

          This property returns the base ten logarithim of e, which is aproximately 0.434.

          example: Log=Math.LOG10E
          Where Log is the variable that you want to assign the response to.
 
The PI Property

          This property returns the value of Pi, aproximately 3.14159.

          example: valueofpi=Math.PI
          Where valueofpi is the variable that you want to assign the respone to.
 
The SQRT1_2 Property

          This property displays the square root of one half, which is aproximately 0.707.
 
          example: Math.SQRT1_2
 
The sqrt2 Property

          This property displays the square root of two, which is aproximately 1.414.

          example:  Math.sqrt2
 
Methods:
 
      abs()   - Displays the absolute value of a number
                    example: Math.abs(number)
 
      acos() - Displays the arc cosine of a number
                   example: Math.acos(number)
 
      asin()  - Displays the arc sine of a number
                   example: Math.asin(number)
 
      atan()  - Displays the arc tangent of a number
                    example: Math.atan(number)
 
      ceil()    - Displays the least integer greater than or equal to a number
                    example: Math.ceil(number)
 
      cos()   - Displays the cosine of a number
                    example: Math.cos(number)
 
      exp()   - Displays eNumber where Number is the argument and e is Euler's constant
                   example: Math.exp(number)
 
      floor() - Displays the greatest integer less than or equal to a number
                   example: Math.floor(number)
 
      log()   - Displays the natural logarithim of a number
                   example: Math.log(number)
 
      max()  - Displays the greater of two numbers
                   example: Math.max(number1,number2)
 
      min()  - Displays the lesser of two numbers
                  example:  Math.min(number1,number2)
 
      pow() - Displays base to the exponent power, baseExponent
                  example: Math.pow(baseExponent)
 
      random() - Displays a random number between 0 and 1. UNIX ONLY platforms
                        example: Math.random
 
      round()    - Displays the number rounded to the nearest integer
                        example: Math.round(number)
 
      sin()        - Displays the sine of a number
                       example: Math.sin(number)

      sqrt()       - Displays the square root of a number
                        example: Math.sqrt(number)
 
      tan()        - Displays the tangent of a number
                        example:  Math.tan(number)
 
 
 
 

Object Name: navigator

 Ever wanted to really scare someone and make them think that you know everything about them? If you use JavaScript to do it, you'll probably need to use the navigator object. This object contains all the information about the browser the user is using to view a webpage.

example: navigator.property
Where property is one from the list below.
 
Properties:
 
The appCodeName Property
 
          Reading this property returns the codename of the current
          browser that the viewer is using.

          example: Name=navigator.appCodeName
          Where Name is the  variable you want to assign the value to. 
     
The appName Property

          Reading this property returns the name of the current browser
          that the viewer is using.

          example: Name=navigator.appCodeName
          Where Name is the variable you want to assign the value to.
 
The appVersion Property
 
          Reading this property returns the verison number of the current
          browser that the viewer is using.
 
          example: Ver=navigator.appVersion
          Where Ver is the variable that you want to assign the value to.
 
The userAgent Property

          This property returns the user-agent header in the HTTP protocol from client to
          server.

          example: UAgent=navigator.userAgent
          Where UAgent is the variable that you want to assign the response to.
 
Methods: None
 
 
 
 

Object Name: password

The password object creates a text input field that replaces all the text entered into it with asterisks, thus hiding what is entered from any prying eyes. Buttons have to be defined within the <FORM> and </FORM> tags.
A Password field looks like this:


example: <INPUT TYPE="PASSWORD" NAME="NAME" VALUE="VALUE" SIZE="SIZE">
 
NAME Specifies the name of the field.
VALUE Specifies the text that is already in the box when the page loads.
SIZE Speicifies the width of the field (Or how many characters a user can enter before the field starts to scroll.)
 
Or, in JavaScript, to access the properties and methods, use:
password.method or password.property where password is the name of the password field and method or property is one from the list below.

Properties:

The name Property
 
          This property displays the name of the specified object.
 

example: Name=object.name
 
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 
Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
text, textarea, and window


The defaultValue Property

          This property sets a string as the default value for a password, text, textarea,
          or hidden field.

          example: Field.defaultValue="Text"
          Where Field is the name of the field, and Text is the value you want to set it to.
          Property of: hidden, password, text, and textarea
 
The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is
          the name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset,
          select, submit, and text
 
Methods:
 
     blur()      - Removes the focus from the defined element
                     example: passName.blur()
 
      focus()  - Places the focus on the assigned element
                     example: selectName.focus(),
 
     select() - Selects the input area of the defined element
                    example: passName.select()
 
 
 
 

Object Name: radio

Radio buttons, as with all other form objects, have to be defined within the <FORM> and </FORM> tags.
 
Radio buttons look like this:


• 
   
  example: <INPUT TYPE="radio" NAME="Name" VALUE="Value" {CHECKED}>

  Where NAME is the name of the button, VALUE is the value of the button, and CHECKED can either be part of the code or not. If you put CHECKED, then when the form loads, the button is already checked. Otherwise, the user has to click it. If you want to access the properties and methods, use radio.property or radio.method Where property or method are from the list below and radio is the name of the radio button.
   
  Properties:
   
  The name Property
   
            This property displays the name of the specified object.
   

  example:  Name=object.name
   
  Where Name is the variable that you want to assign the response to and object is
  one of the objects listed below.

   
  Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
  text, textarea, and window
   

  The checked Property

            This property returns either a True or False which indicates if a specific checkbox
            or radio button is checked.

            example: var=checkbox.checked
            Where var is the variable you want to assign the response to and checkbox is the
            name of the checkbox or radio button.
   
            Property of: checkbox, and radio
   
  The defaultChecked Property

            This property returns either a True or False which indicates the default selection
            status of a radio button or checkbox.

            example: var=checkbox.defaultChecked
            Where var is the variable you want to assign the response to and checkbox is
            the name of the checkbox or radio button.
   
            Property of: checkbox, and radio

          The length Property

         This property returns a number equal to the length of the specified array or object.

 
example: LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.
 
Property of: anchor, elements, form, frame, history, link, radio, select, and window
 


The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is
          the name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset,
          select, submit, and text

 

Methods: click

      click()         Simulates a mouse click on a button
                        example: radio.nameofbutton.click()  
 
 
 

Object Name: reset

 If someone doesn't have a reset button on a form, don't you just want to beat 'em? I know I do. Reset buttons allow you to clear an entire form just by clicking one button.
Reset buttons, as with all other form objects, have to be defined within the <FORM> and </FORM> tags.
 
A reset button looks like the one below (The text on the face can be changed)


• 
   
  example: <INPUT TYPE="RESET" NAME="NAME" VALUE="VALUE">
  Where NAME is the Name of the button and VALUE is the text on the face of the button.
   
  To access the properties and methods, use reset.property or reset.method where reset is the name of the button and property or method are from the list below.
   
  Properties:

  The name Property
   
            This property displays the name of the specified object.

  example:  Name=object.name
   
  Where Name is the variable that you want to assign the response to and object is
  one of the objects listed below.

   
  Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
  text, textarea, and window
   

  The value Property

            This property displays the value of the specified object

            example: VALUE=document.form.object.value
            Where VALUE is the variable that you want to assign the responses to, form is
            the name of the form the object is in, and object is an object from the list below.
   
            Property of: button, checkbox, hidden, password, radio, reset,
            select, submit, and text
   

  Methods: click

        click()         Simulates a mouse click on a button
                          example:  nameofbutton.click()
   
   
   
   

Object Name: select

 Ever filled out a contest online and it asked you what country you lived it? You probably had to select from a pre-defined list in a pull-down menu, right? That's a selection box, or a selection array as some call it.
 
The selection array has to be placed inside a form using the <FORM> and </FORM> tags.
 
A Selection array and a scroll list look like these:


Selection array: A  B  C  D  Scroll list:  A  B  C  D

example: <SELECT NAME="NAME" SIZE="SIZE" {MULTIPLE}> <OPTION VALUE="option" {SELECTED}> Text </SELECT>
 
Where NAME is the name of the selection array, SIZE sets the number of options displayed before the form scrolls, MULTIPLE, if added into the tag, makes the array a scrolling list instead of a selection array.
 
The <OPTION VALUE="option" {SELECTED}> Text specifies One menu option at a time.
 
To add more than one option, (which is the purpose of a pull-down menu, you need to make a seperate <OPTION> tag for each option.  In the <OPTION> tag, VALUE is the VALUE of the option, SELECTED, if added, makes that particular option the pre-defined selected option, and Text is the text that you want to be displayed in the pull-down menu.
To access the object's properties and methods, use name.property or name.method where property or method come from the list below and name is the name of the selection box.
 
Properties:
 
The name Property
 
          This property displays the name of the specified object.

example: Name=object.name
 
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 
Property of: button, checkbox, frame, hidden, password, radio, reset, select, submit,
text, textarea, and window

 
The defaultSelected Property

          Returns the default selection status of an option in a select object.

          example: defaulSelected=Boolean
          Where Boolean is either True or False
 
The index Property

          This property represents the index value of an option in a select object.

          example: Name.options[i].index
          Where Name is the name of the select object and i is the number of the specific
          option.

            The length Property

         This property returns a number equal to the length of the specified array or object.

 
example: LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.
 
Property of: anchor, elements, form, frame, history, link, radio, select, and window
 

The selected Property

          This property returns either a true or false that specifies the current selection state
          of an option in a select object.
 
          example: document.form.select=index
          Where index is the variable that you want to assign the response to.
 
  The text Property

          This property controls the text that follows an <OPTION> tag in a select object.

          example: document.form.select.listoptions(X).text
          Where form is the name of the form, X is the option number, and text is the
          text you want to display.

The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is
          the name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset,
          select, submit, and text
 

 

Methods:

      blur()     - Removes the focus from the defined element
                     example: passName.blur()
 
      focus()  - Places the focus on the assigned element
                     example: selectName.focus(),
 
     select() - Selects the input area of the defined element
                    example: passName.select()
 

Object Name: string

 A string is any amount of characters stored as a variable. The text is enclosed between ' ' or " ". An example of a string would be 'JavaScript' or "JavaScript".

example: string.property or string.method
Where string is the name of the string and property or method come from the list below.
 
Properties:
 
Methods:
 
      anchor()       - Used to create an anchor
                             example: document.write(string.anchor("contents_anchor"())
 
      big()              - Makes text large
                              example: document.write(text.big())
 
      blink()            - Makes text blink
                              example: document.write(text.blink())
 
      bold()            - Makes text bold
                              example: document.write(text.bold())
 
      charAt()         - Displays the character at the defined location
                              example: document.write(text.charAt(integer))
 
      fixed()            - Displays text in a fixed-pitch font
                              example: document.write(text.fixed())
 
      fontcolor()      - Displays text in the set color
                              example: document.write(text.fontcolor(color))
 
      fontsize()       - Displays text in a set font size
                              example: document.write(text.fontsize(integer))
 
      indexOf()       - Looks for the first instance of the variable A in your  current string
                              example: document.write(text.IndexOf(A,{fromIndex}())
 
      italics()          - Displays text in italics
                              examples: document.write(text.italics())
 
      lastIndexOf() - Looks for the last instance of the variable A in the string
                             example: document.write(text.lastIndexOf(A,{fromIndex}())
 
      link()             - Used to create a hypertext link
                             example: document.write(text.link(URL())
 
      small()          - Makes text small
                             example: document.write(text.small())
 
      strike()          - Displays text as strike-through
                             example:  document.write(text.strike())
 
      sub()             - Displays text in subscript
                              example: document.write(text.sub())
 
      subString()   - Refers to a certain portion of a string
                             example: String=mystring.substring(indexA,indexB)
 
      sup()                - Displays text in superscript
                                example: document.write(text.sup())
 
      toLowerCase() - Converts a string to lower case text
                                example: document.write(text.toLowerCase())
 
      toUpperCase() - Converts a string to uppercase  text
                                example: document.write(text.toUpperCase())
 
 
 
 

Object Name: submit

 The submit object makes a submit button in an HTML form, or course, it needs to be defined within the <FORM> and </FORM> tags.
To access the properties and methods of a submit button, use submit.method or submit.property where submit is the name of the button, and method or property come from the list below.
A submit button looks like this:


example: <INPUT TYPE="SUBMIT" NAME="NAME" VALUE="Text">
NAME is the name of the button, and VALUE is the text that is displayed on the face of the button.
 
Properties: name, and value

The name Property
 

This property displays the name of the specified object.

 

example: Name=object.name
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select,

          submit, text, textarea, and window

The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is the
          name of the form the object is in, and  object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset, select, submit, and
          text
 
Methods: click

      click()         Simulates a mouse click on a button
                        example:  nameofbutton.click() 
 
 
 

Object Name: text

 A text object creates creates a text input field that allows the user to enter anything. Text input fields are vital to forms.  Text objects need to be defined within the <FORM> and </FORM> tags.
 
A text object looks like this:


example: <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="size">

NAME is the name of the field.
VALUE is the preset text that is displayed in the field when the page loads. If you don't want any preset text in the field, don't set it.
SIZE is an interger and represents the width (or number of characters long) of the field.

To acces the properties and methods, use text.method or text.property. Where text is the name of the field and propertys or method comes from the list below.

Properties:
 
The name Property
 

This property displays the name of the specified object.

 

example: Name=object.name
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select,

          submit, text, textarea, and window

The value Property

          This property displays the value of the specified object

          example: VALUE=document.form.object.value
          Where VALUE is the variable that you want to assign the responses to, form is the
          name of the form the object is in, and object is an object from the list below.
 
          Property of: button, checkbox, hidden, password, radio, reset, select, submit, and
          text
 
 The defaultValue Property

          This property sets a string as the default value for a password, text, textarea,
          or hidden field.

          example: Field.defaultValue="Text"
          Where Field is the name of the field, and Text is the value you want to set it to.
 
          Property of: hidden, password, text, and textarea
 
Methods:

          blur()      - Removes the focus from the defined element
                          example:  passName.blur()
 
           focus()  - Places the focus on the assigned element
                          example:  selectName.focus()
 
          select()  - Selects the input area of the defined element
                          example: passName.select()
 
 
 

Object Name: textarea

Text area objects work inside the <FORM> and </FORM> tags and allow a user to enter multiple lines of data into a form.
To access the properties and methods of a text area, use textarea.property or textarea.method where textarea is the name of the text area, and property or method comes from the list below.
A text area looks like this:


This is a text area. It allows more data input than a normal text field and is more customizable. 

example:  <TEXTAREA NAME="name" ROWS=rows COLS=cols WRAP="off/virtual/physical">Text</TEXTAREA>
 
NAME is the name of the text area, ROWS is an integer that specifies how many rows tall the field is. COLS is an integer that specifies how many characters wide the field is.
WRAP is either off, virtual, or physical. Off turns of text wrapping, virtual wraps text but sends it exactly as typed, and physical wraps the text with new lines.
 
Properties:
 
The name Property
 

This property displays the name of the specified object.

 

example:  Name=object.name
Where Name is the variable that you want to assign the response to and object is
one of the objects listed below.

 

Property of: button, checkbox, frame, hidden, password, radio, reset, select,

          submit, text, textarea, and window
 
The defaultValue Property

          This property sets a string as the default value for a password, text, textarea,
          or hidden field.

          example: Field.defaultValue="Text"
          Where Field is the name of the field, and Text is the value you want to set it to.
          Property of: hidden, password, text, and textarea
 

Methods:
 
          blur()      - Removes the focus from the defined element
                          example:  passName.blur()
 
           focus()  - Places the focus on the assigned element
                          example:  selectName.focus()
 
          select()  - Selects the input area of the defined element
                          example: passName.select()
 
 
 
 

Object Name: window

The window object is the top level object for each location, history, or document object.

example: window = window.open("URL", "NAME" {,"Features"})
window is the name of the window, URL is the location of the page you want to open, NAME is the name of the window, and Features define the size of the window, etc.
There are many ways to access a window's properties and methods. They are listed below:
 

• methodName(specifications)
• parent.property
• parent.method(specifications)
• propertyName
• self.property
• self.method(specifications)
• top.property
• top.method(specifications)
• window.property
• window.method(specifications)
• var.property
• var.method(specifications)
  property is one of the properties listed below, method is one of the methods listed below, and var is the name of the window.

 
Properties:
 
The defaultStatus Property

          This property sets the default message displayed in the Status Bar

          example: window.defaultStatus="Message"
          Where Message is the message you want to display.
 
          Property of: window

          The length Property

         This property returns a number equal to the length of the specified array or object.

 
example:  LENGTH=js.length
Where LENGTH is the variable that  you want to assign the response to and js is
one of objects listed below.
 
Property of: anchor, elements, form, frame, history, link, radio, select, and window

       The parent Property

          This property is a synonym for a window that contains the current frame.

          example: Window=frame.parent
          Where Window is the variable that you want to assign the response to.
 
          Property of: frame, and window
 
The pathname Property

          Returns a string specifying the url-path protion of the URL.

          example: Path=link.pathname
          Where Path is the variable that  you want to assign the response to.
 
          Property of: frame, and window
 
The status Property

          This property controls the text that is displayed in the status bar.

          example: window.status="Message"
          Where Message is the message that you want to display.
 
The top Property

          The top property refers to the top most browser window.

          example: TopWin=window.top
          Where TopWin is the variable that you want to assign the response to.
 
 
Methods:
 
      alert()               - Creates an alert dialog box
                                 example: window.alert("Text")
 
      clearTimeout() - Clears the setTimeout command
                                example:  window.clearTimeout(TimerIDVariable)
 
      close()             - Closes the specified window
                                example:  window.close()
 
      confirm()          - Creates a confirm dialog box
                                example: window.confirm("Continue? Yes or No")

      open()             - Opens a new window
                                example: window.open("URL","Name",["Features"])
 
      prompt()          - Creates a prompt dialog box
                                example: window.prompt("Text",[InputDefault])
 
      setTimeout()    - Runs JavaScript code for a certain number of milliseconds
                                example: window.setTimeout("String",msecs)

12/04/99