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JS implements the method of moving webpage background images diagonally, and js webpage background

Source: Internet
Author: User
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JS implements the method of moving webpage background images diagonally, and js webpage background

The example in this article describes how JS achieves oblique movement of webpage background images. Share it with you for your reference. The specific implementation method is as follows:

Copy codeThe Code is as follows: <Head>
<Title> JS enables oblique movement of webpage background images </title>
<Body background = "images/changshi. ico">
<Script language = "Javascript">
<! --
Function selectAll (theField ){
Var tempval = eval ("document." + theField)
Tempval. focus ()
Tempval. select ()
}
// -->
</Script>
<Script language = "Javascript">
<! --
Var background = "images/changshi. ico ";
Var speed = 0;
BrowserName = navigator. appName;
BrowserVer = parseInt (navigator. appVersion );
If (browserName! = "Netscape" | browserVer> = 4.5 ){
Function moveback (movert, movedn, hPos, vPos ){
If (arguments [4])
Document. body. style. backgroundImage = "url (\" "+ arguments [4] + "\")";
If (arguments [5])
Document. body. style. backgroundRepeat = arguments [5]
If (! IsNaN (hPos )){
If (movert! = 0) & (hPos> 0) hPos =-100000
HPos + = movert
}
If (! IsNaN (vPos )){
If (movedn! = 0) & amp; (vPos> 0) vPos =-100000
VPos + = movedn
}
Document. body. style. backgroundPosition = hPos + "" + vPos
If (isNaN (hPos) hPos = "\" "+ hPos + "\""
If (isNaN (vPos) vPos = "\" "+ vPos + "\""
SetTimeout ("moveback (" + movert + "," + movedn + "," + hPos + "," + vPos + ")", speed)
}
Moveback (, background );
}

// -->
</Script>
</Body>
</Html>

I hope this article will help you design javascript programs.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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