Object Attributes
Document. title // set the document title is equivalent to the <title> tag of HTML.
Document. bgColor // set the background color of the page
Document. fgColor // set the foreground color (text color)
Document. linkColor // The link color that has not been clicked
Document. alinkColor // the color of the activation Link (focus on this link)
Document. vlinkColor // the color of the clicked Link
Document. URL // set the URL attribute to open another webpage in the same window
Document. fileCreatedDate // file creation date, read-only attribute
Document. fileModifiedDate // file modification date, read-only attribute
Document. fileSize // file size, read-only attribute
Document. cookie // set and read cookies
Document. charset // set the character set to simplified Chinese: gb2312
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Object Method
Document. write () // dynamically write content to the page
Document. createElement (Tag) // create an html Tag object
Document. getElementById (ID) // get the object with the specified ID value
Document. getElementsByName (Name) // get the object with the specified Name value
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Images set (images in the page)
A) reference through a set
Document. images // The label on the corresponding page
Document. images. length // Number of labels on the corresponding page
Document. images [0] // 1st tags
Document. images [I] // The I-1 label
B) direct reference through the nane attribute
Document. images. oImage // document. images. name attribute
C) reference the image's src attribute
Document. images. oImage. src // document. images. name attribute. src
D) create an image
Var oImage
OImage = new Image ()
Document. images. oImage. src = "/1.jpg"
At the same time, you can create a tag on the page to display it.
<Html>
<Script language = "javascript">
Var oImage
OImage = new Image ()
Document. images. oImage. src = "/1.jpg"
</Script>
</Html>
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Forms set (forms in the page)
A) reference through a set
Document. forms // The <form> tag on the corresponding page
Document. forms. length // Number of <form> labels on the corresponding page
Document. forms [0] // 1st <form> tags
Document. forms [I] // The I-1 <form> label
Document. forms [I]. length // number of controls in the I-1 <form>
Document. forms [I]. elements [j] // The I-1 control in the J-1 <form>
B) direct reference through the label name attribute
<Form name = "Myform"> <input name = "myctrl"> </form>
Document. Myform. myctrl // document. form name. Control name
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<Html>
<! -- Script related to the Text control -->
<Form name = "Myform">
<Input type = "text" name = "oText">
<Input type = "password" name = "oPswd">
<Form>
<Script language = "javascript">
// Obtain the value of the text password box
Document. write (document. Myform. oText. value)
Document. write (document. Myform. oPswd. value)
</Script>
</Html>
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<Html>
<! -- Select control-related Script -->
<Form name = "Myform">
<Select name = "oSelect">
<Option value = "1"> 1 </option>
<Option value = "2"> 2 </option>
<Option value = "3"> 3 </option>
</Select>
</Form>
<Script language = "javascript">
// Traverse the option items of the select Control
Var length
Length = document. Myform. oSelect. length
For (I = 0; I <length; I ++)
Document. write (document. Myform. oSelect [I]. value)
</Script>
<Script language = "javascript">
// Traverse the option and determine whether an option is selected
For (I = 0; I <document. Myform. oSelect. length; I ++ ){
If (document. Myform. oSelect [I]. selected! = True)
Document. write (document. Myform. oSelect [I]. value)
Else
Document. write ("<font color = red>" + document. Myform. oSelect [I]. value + "</font> ")
}
</Script>
<Script language = "javascript">
// Print the selected option based on SelectedIndex
// (0 to document. Myform. oSelect. length-1)
I = document. Myform. oSelect. selectedIndex
Document. write (document. Myform. oSelect [I]. value)
</Script>
<Script language = "javascript">
// Dynamically Add the option item of the select Control
Var oOption = document. createElement ("OPTION ");
OOption. text = "4 ";
OOption. value = "4 ";
Document. Myform. oSelect. add (oOption );
</Script>
<Html>
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<Div id = "oDiv"> Text </Div>
Document. all. oDiv // reference layer oDiv
Document. all. oDiv. style
Document. all. oDiv. style. display = "" // set the layer to visible.
Document. all. oDiv. style. display = "none" // The layers are hidden.
/* Document. all indicates the set of all objects in the document.
Only ie supports this attribute, so it is also used to determine the browser type */
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