var pngbrOK=false; 
var mie=false; 
var aver=parseInt(navigator.appVersion.substring(0,1)); 
var aname=navigator.appName; 
var pngmystop=0; 

function pngcheckbrOK() 
{if(aname.indexOf("Internet Explorer")!=-1) 
{if(aver>=4) pngbrOK=navigator.javaEnabled(); 
mie=true;
}
if(aname.indexOf("Netscape")!=-1) 
{if(aver>=4) pngbrOK=navigator.javaEnabled();} 
}
var vmin=2; 
var vmax=5; 
var vr=2; 
var timer1; 

function pngchip(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;
}

function pngmovechip(chipname) 
{
if(pngbrOK && pngmystop==0) 
{eval("pngchip="+chipname);
if(!mie)
{
pageX=window.pageXOffset+100;
pageW=window.innerWidth-200;
pageY=window.pageYOffset+100;
pageH=window.innerHeight-100;
}
else
{
pageX=window.document.body.scrollLeft+10;
pageW=window.document.body.offsetWidth-8-20;
pageY=window.document.body.scrollTop+10;
pageH=window.document.body.offsetHeight-10;
}

pngchip.xx=pngchip.xx+pngchip.vx;
pngchip.yy=pngchip.yy+pngchip.vy;
pngchip.vx+=vr*(Math.random()-0.5);
pngchip.vy+=vr*(Math.random()-0.5);
if(pngchip.vx>(vmax+vmin))  pngchip.vx=(vmax+vmin)*2-pngchip.vx; 
if(pngchip.vx<(-vmax-vmin)) pngchip.vx=(-vmax-vmin)*2-pngchip.vx; 
if(pngchip.vy>(vmax+vmin))  pngchip.vy=(vmax+vmin)*2-pngchip.vy; 
if(pngchip.vy<(-vmax-vmin)) pngchip.vy=(-vmax-vmin)*2-pngchip.vy; 
if(pngchip.xx<=pageX)
{pngchip.xx=pageX;
pngchip.vx=vmin+vmax*Math.random();
}
if(pngchip.xx>=pageX+pageW-pngchip.w)
{pngchip.xx=pageX+pageW-pngchip.w;
pngchip.vx=-vmin-vmax*Math.random();
}
if(pngchip.yy<=pageY)
{pngchip.yy=pageY;
pngchip.vy=vmin+vmax*Math.random();
}
if(pngchip.yy>=pageY+pageH-pngchip.h)
{pngchip.yy=pageY+pageH-pngchip.h;
pngchip.vy=-vmin-vmax*Math.random();
}
if(!mie)
{eval('document.'+pngchip.named+'.top ='+pngchip.yy); 
eval('document.'+pngchip.named+'.left='+pngchip.xx);
} 
else
{eval('document.all.'+pngchip.named+'.style.pixelLeft='+pngchip.xx);
eval('document.all.'+pngchip.named+'.style.pixelTop ='+pngchip.yy); 
}
	pngchip.timer1=setTimeout("pngmovechip('"+pngchip.named+"')",100);
}
}
function pngstop(x) 
{
pngbrOK=true;
pngmystop=x;
pngmovechip("pngtome");
}
var pngtome; 
var pngchip; 
function pngtome() 
{pngcheckbrOK(); 
pngtome=new pngchip("pngtome",223,223); 
if(pngbrOK) 
{ pngmovechip("pngtome"); 
}
}

ns4=(document.layers)?true:false;
ie4=(document.all)?true:false;

function pngover() 
{
if(ns4){
	eval('document.png.left=document.'+pngchip.named+'.left');
	eval('document.png.top=document.'+pngchip.named+'.top-15');
	document.png.visibility="show";
	}
else if(ie4) 
	{
	document.all.png.style.left=parseInt(document.all.pngtome.style.left);
	document.all.png.style.top=parseInt(document.all.pngtome.style.top)-20;
	document.all.png.style.visibility="visible";
	pngstop(1);
	}
}

function pngout() 
{
if(ns4){
	document.png.visibility="hide";
	}else if(ie4) 
	{
	document.all.png.style.visibility="hidden";
	pngstop(0);
	}
}

//document.write("<div id='pngtome' style='position:absolute;z-index:500;'><IFRAME frameBorder=0 height=223 width=223 marginHeight=0 scrolling=no src=en_ad.asp MarginWidth=0></IFRAME>" 
//+"</div>");
//pngtome()