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

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;
}
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)
	{chip.xx=pageX;
	chip.vx=vmin+vmax*Math.random();
	}
	if(chip.xx>=pageX+pageW-chip.w)
	{chip.xx=pageX+pageW-chip.w;
	chip.vx=-vmin-vmax*Math.random();
	}
	if(chip.yy<=pageY)
	{chip.yy=pageY;
	chip.vy=vmin+vmax*Math.random();
	}
	if(chip.yy>=pageY+pageH-chip.h)
	{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);
	}
}
function stopme(chipname)
{
	if(brOK)
	{//alert(chipname)
		eval("chip="+chipname);
		if(chip.timer1!=null)
		{clearTimeout(chip.timer1)}
	}
}

var sasta;
var chip;
function sasta()
{checkbrOK(); 
sasta=new Chip("sasta",60,80);
if(brOK) 
{ movechip("sasta");
}
}