var JavaEn=false;
var MSIE=false;
var NavVer=parseInt(navigator.appVersion.substring(0,1));
var NavName=navigator.appName;

function CheckJavaEn()
{
	if (NavName.indexOf("Internet Explorer")!=-1)
	{
	   if(NavVer>=4) 
			JavaEn=navigator.javaEnabled();
	   MSIE=true;
	}
	if(NavName.indexOf("Netscape")!=-1)  
	{
	   if(NavVer>=4) 
			JavaEn=navigator.javaEnabled();
	}
}

var VerMin=2;
var VerMax=5;
var VerRate=0.02;
var VerTimer;

function Chip(Chipname,width,height)
{
 this.named=Chipname;
 this.vx=VerMin+VerMax*Math.random();
 this.vy=VerMin+VerMax*Math.random();
 this.w=width;
 this.h=height;
 this.xx=0;
 this.yy=0;
 this.VerTimer=null;
}

function MoveChip(Chipname)
{
 if(JavaEn)
  {
	eval("Chip="+Chipname);
	if(!MSIE)
    {
		pageX=window.pageXOffset;
	    pageW=window.innerWidth;
		pageY=window.pageYOffset;
	    pageH=window.innerHeight;
    }
   else
    {
		pageX=window.document.body.scrollLeft;
		pageW=window.document.body.offsetWidth-22;
	    pageY=window.document.body.scrollTop;
		pageH=window.document.body.offsetHeight-34;
    } 
   Chip.xx=Chip.xx+Chip.vx;
   Chip.yy=Chip.yy+Chip.vy;
   
   Chip.vx+=VerRate*(Math.random()-0.5);
   Chip.vy+=VerRate*(Math.random()-0.5);
   if(Chip.vx>(VerMax+VerMin))
		Chip.vx=(VerMax+VerMin)*2-Chip.vx;
   if(Chip.vx<(-VerMax-VerMin))
		Chip.vx=(-VerMax-VerMin)*2-Chip.vx;
   if(Chip.vy>(VerMax+VerMin))
		Chip.vy=(VerMax+VerMin)*2-Chip.vy;
   if(Chip.vy<(-VerMax-VerMin))
		Chip.vy=(-VerMax-VerMin)*2-Chip.vy;

   if(Chip.xx<=pageX)
     {
		Chip.xx=pageX;
	    Chip.vx=VerMin+VerMax*Math.random();
     }
   if(Chip.xx>=pageX+pageW-Chip.w)
     {
		Chip.xx=pageX+pageW-Chip.w;
		Chip.vx=-VerMin-VerMax*Math.random();
     }
   if(Chip.yy<=pageY)
     {
		Chip.yy=pageY;
		Chip.vy=VerMin+VerMax*Math.random();
     }
   if(Chip.yy>=pageY+pageH-Chip.h)
     {
		Chip.yy=pageY+pageH-Chip.h;
		Chip.vy=-VerMin-VerMax*Math.random();
     }

   if(!MSIE)
      {
		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.VerTimer=setTimeout("MoveChip('"+Chip.named+"')",140);
  }
}

function hide(ChipName){
	if(JavaEn)
	{
		eval("Chip="+ChipName);
		if(!MSIE)
			eval('document.'+Chip.named+'.visibility ='+"'hide'");
		else
			eval('document.all.'+Chip.named+'.style.visibility ='+"'hidden'");
	}
}

function StopChip(ChipName)
{
	if(JavaEn)
	{
	   eval("Chip="+ChipName);
	   if(Chip.VerTimer!=null)
	    {
			clearTimeout(Chip.VerTimer)
		}
	}
}

var ChipPic;
function ChipStart()
{
	CheckJavaEn(); 
	ChipPic=new Chip("ChipPic",90,98);
	if(JavaEn) 
	{
		MoveChip("ChipPic");
    }
}