像163网站顶部展出的大幅广告

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163网易顶部动态展开的广告效果

转自http://bbs.blueidea.com/thread-2773857-1-1.html，演示效果请参见这里

<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html  xmlns ="http://www.w3.org/1999/xhtml"   >
< head >
     < title > 像163网站顶部展出的大幅广告-wsoul.net </ title >
    < script  type ="text/javascript"  language ="javascript" > ...
    var time = 500;
    var h = 0;
    function addCount()
    ...{
        if(time>0)
        ...{
            time--;
            h = h+5;
        }
        else
        ...{
            return;
        }
        if(h>500)  //高度
        ...{
            return;
        }
        document.getElementById("ads").style.display = "";
        document.getElementById("ads").style.height = h+"px";
        setTimeout("addCount()",30); 
    }
    
    window.onload = function showAds()
    ...{
        addCount();
        setTimeout("noneAds()",7000); //停留时间自己适当调整
    }
     </ script >
    
     < script  type ="text/javascript"  language ="javascript" > ...
    var T = 500;
    var N = 500; //高度
    function noneAds()
    ...{
        if(T>0)
        ...{
            T--;
            N = N-5;
        }
        else
        ...{
            return;
        }
        if(N<0)
        ...{
            document.getElementById("ads").style.display = "none";
            return;
        }
        
        document.getElementById("ads").style.height = N+"px";
        setTimeout("noneAds()",30); 
    }
     </ script >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
     < div  id ="ads"  style ="margin:auto; display:none; width:900px; top:0px; height:0px; border:solid 1px #000; background-color:#fafafa; overflow:hidden; text-align:center;" >
         < img  src ="http://gg.blueidea.com/desk/2007/004.jpg"  width ="900"  height ="500"  alt =""   />
     </ div >
     < div  style ="margin:auto; width:900px; height:200px; border:solid 1px #000; background-color:#fafafa; text-align:center;" >
        网站主体内容
     </ div >
     </ form >
</ body >
</ html >

 

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