var stopmove=0
var speed=150
var titlestr="with all best wishes for Hanjuan."
var brOK=false;
var mie=false;

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

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

var moveimg;
var chip;

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&&stopmove!=1)
	{
	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-43;
		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+"')",speed);
	}
	else
	{chip.timer1=setTimeout("movechip('"+chip.named+"')",speed);}
}

function stopme(chipname)
{
checkbrOK();
if(brOK)
	{
	eval("chip="+chipname);
	if(chip.timer1!=null) clearTimeout(chip.timer1);
	}
}

function moveimg()
{
checkbrOK(); 
moveimg=new Chip("moveimg",116,86);
movechip("moveimg");
}