漂浮广告

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 <html xmlns="http://www.w3.org/1999/xhtml" >

<head>

    <title>无标题页</title>

<!--漂浮广告------------------开始-------------------------------------->

<SCRIPT language=JavaScript>

var brOK=false;

var mie=false;

var aver=parseInt(navigator.appVersion.substring(0,1));

var aname=navigator.appName;

//检测浏览器类型

function checkbrOK()

{

  if(aname.indexOf("Internet Explorer")!=-1)

   {if(aver>=4) brOK=navigator.javaEnabled();

    mie=true;

   }

  if(aname.indexOf("Netscape")!=-1)  

   {if(aver>=4) brOK=navigator.javaEnabled();}

}

var vmin=2;

var vmax=5;

var vr=2;

var timer1;

function Chip(chipname,width,height)

{this.named=chipname;

 this.vx=vmin+vmax*Math.random();

 this.vy=vmin+vmax*Math.random();

 this.w=width;

 this.h=height;

 this.xx=0;

 this.yy=0;

 this.timer1=null;

}

//移动图像  

function movechip(chipname)

{

 if(brOK)

  {eval("chip="+chipname);

   if(!mie)

    {pageX=window.pageXOffset;

     pageW=window.innerWidth;

     pageY=window.pageYOffset;

     pageH=window.innerHeight;

    }

   else

    {pageX=window.document.body.scrollLeft;

     pageW=window.document.body.offsetWidth-8;

     pageY=window.document.body.scrollTop;

     pageH=window.document.body.offsetHeight;

    } 

   chip.xx=chip.xx+chip.vx;

   chip.yy=chip.yy+chip.vy;

   chip.vx+=vr*(Math.random()-0.5);

   chip.vy+=vr*(Math.random()-0.5);

   if(chip.vx>(vmax+vmin))  chip.vx=(vmax+vmin)*2-chip.vx;

   if(chip.vx<(-vmax-vmin)) chip.vx=(-vmax-vmin)*2-chip.vx;

   if(chip.vy>(vmax+vmin))  chip.vy=(vmax+vmin)*2-chip.vy;

   if(chip.vy<(-vmax-vmin)) chip.vy=(-vmax-vmin)*2-chip.vy;

   if(chip.xx<=pageX)               //水平方向不到边界时

     {chip.xx=pageX;

      chip.vx=vmin+vmax*Math.random();

     }

   if(chip.xx>=pageX+pageW-chip.w)  //水平方向超过边界时

     {chip.xx=pageX+pageW-chip.w;

      chip.vx=-vmin-vmax*Math.random();

     }

   if(chip.yy<=pageY)              //垂直方向不到边界时

     {chip.yy=pageY;

      chip.vy=vmin+vmax*Math.random();

     }

   if(chip.yy>=pageY+pageH-chip.h) //垂直方向超过边界时

     {chip.yy=pageY+pageH-chip.h;

      chip.vy=-vmin-vmax*Math.random();

     }

   if(!mie)

      {eval('document.'+chip.named+'.top ='+chip.yy);

       eval('document.'+chip.named+'.left='+chip.xx);

      } 

   else

      {eval('document.all.'+chip.named+'.style.pixelLeft='+chip.xx);

       eval('document.all.'+chip.named+'.style.pixelTop ='+chip.yy); 

      }

   chip.timer1=setTimeout("movechip('"+chip.named+"')",100); //设置定时器

  }

}

//终止图片的循环漂浮

function stopme(chipname)

{

  if(brOK)

  {

   eval("chip="+chipname);

   if(chip.timer1!=null)

    {clearTimeout(chip.timer1)}

  }

}

var moveimg;

function beginmove()

{

  checkbrOK(); 

  moveimg=new Chip("moveimg",120,150);

  if(brOK) 

   { movechip("moveimg");}

}

</SCRIPT>

<!--漂浮广告------------------结束-------------------------------------->

</head>

<body onload="beginmove()">



<!--漂浮广告-->

<p> <DIV id="moveimg" style="POSITION: absolute"><img border="0" src="LOGO1.gif" width="100" height="100"></p>

</body>

</html>

 

posted @ 2013-05-13 09:48  xyun  阅读(184)  评论(0)    收藏  举报