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Javascript achieves automatic div layer blocking in 5 seconds, and js5 blocks div in seconds

Source: Internet
Author: User
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Javascript achieves automatic div layer blocking in 5 seconds, and js5 blocks div in seconds

This article describes how to automatically block the div layer in five seconds in JavaScript. Share it with you for your reference. The specific implementation method is as follows:

Copy codeThe Code is as follows: <Head>
<Title> JavaScript automatically blocks the div layer within 5 seconds </title>
<Style type = "text/css">
<! --
# Sort soraddiv {position: absolute; height: 1; width: 1; top: 0; left: 0 ;}
-->
</Style>
</Head>
<Body>
<Script language = "JavaScript1.2">
AdTime = 5; // the expected time of the blocked window
ChanceAd = 1;
Var ns = (document. layers );
Var ie = (document. all );
Var w3 = (document. getElementById &&! Ie );
AdCount = 0;
Function initAd (){
If (! Ns &&! Ie &&! W3) return;
If (ie) adDiv = eval ('document. all. soraddiv. style ');
Else if (ns) adDiv = eval ('document. layers ["soraddiv"] ');
Else if (w3) adDiv = eval ('document. getElementById ("soraddiv"). style ');
RandAd = Math. ceil (Math. random () * chanceAd );
If (ie | w3)
AdDiv. visibility = "visible ";
Else
AdDiv. visibility = "show ";
If (randAd = 1) showAd ();
}
Function showAd (){
If (adCount <adTime * 10) {adCount + = 1;
If (ie) {documentWidth = document. body. offsetWidth/2 + document. body. scrollLeft-20;
Export entheight = document. body. offsetHeight/2 + document. body. scrollTop-20 ;}
Else if (ns) {documentWidth = window. innerWidth/2 + window. pageXOffset-20;
Export entheight = window. innerHeight/2 + window. pageYOffset-20 ;}
Else if (w3) {documentWidth = self. innerWidth/2 + window. pageXOffset-20;
Export entheight = self. innerHeight/2 + window. pageYOffset-20 ;}
AdDiv. left = documentWidth-200; adDiv. top = documentHeight-200;
SetTimeout ("showAd ()", 100);} else closeAd ();
}
Function closeAd (){
If (ie | w3)
AdDiv. display = "none ";
Else
AdDiv. visibility = "hide ";
}
Onload = initAd;
</Script>
<Div id = "soraddiv" style = "visibility: hidden">
<Table width = "450" height = "350" bgcolor = "008000"> <tr> <td>
<Table width = "445" height = "345" bgcolor = "F0FFF0"> <tr> <td>
<Center> welcome to www.CsrCode.cn! <BR> This window will be automatically blocked in 5 seconds </center>
</Td> </tr> </table> </div>
</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.

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