//window.onload=FlAD;
var brOK=false;
var mie=false;
var aver=parseInt(navigator.appVersion.substring(0,1));
var aname=navigator.appName;
var mystop=0;

var vmin=2;
var vmax=5;
var vr=2;
var timer1;

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

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();
  }
}

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 && mystop==0)
{
	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.getElementById("'+chip.named+'").style.pixelLeft='+chip.xx);
		eval('document.getElementById("'+chip.named+'").style.pixelTop ='+chip.yy); 
	}
	chip.timer1=setTimeout("movechip('"+chip.named+"')",100);
}
}
function stopme(x)
{
	brOk=true;
	mystop=x;
	movechip("FlAD");
}
function cncover()
{
if(ns4){
	//document.getElementById("cnc").left=window.innerWidth/2-400;
	document.getElementById("FlAD").visibility="hide";
	eval('document.getElementById("cnc").left=document.'+chip.named+'.left');
	eval('document.getElementById("cnc").top=document.'+chip.named+'.top-15');	
	document.getElementById("cnc").visibility="show";
	}else if(ie4) 
	{
	document.getElementById("FlAD").style.visibility="hidden";
	//document.getElementById("cnc").style.left=window.document.body.offsetWidth/2-400;
	document.getElementById("cnc").style.left=parseInt(document.getElementById("FlAD").style.left)-0;
	document.getElementById("cnc").style.top=parseInt(document.getElementById("FlAD").style.top)-0;	
	document.getElementById("cnc").style.visibility="visible";
	stopme(1);
	}
}

function cncout()
{
if(ns4){
	document.getElementById("cnc").visibility="hide";
	document.getElementById("FlAD").visibility="show";
	}else if(ie4) 
	{
	document.getElementById("cnc").style.visibility="hidden";
	document.getElementById("FlAD").style.visibility="visible";
	stopme(0);
	}
}

function FlAD(){
  checkbrOK(); 
  FlAD=new Chip("FlAD",80,80);
  if(brOK){ movechip("FlAD");}
}