var vmin=2;
var vmax=5;
var vr=2;
var timer1;
var pos=1;


function iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function Chip(chipname,width,height){
this.named=chipname;
this.vx=vmin+vmax*Math.random();
this.vy=vmin+vmax*Math.random();
this.w=width+20;
this.h=height;
this.xx=0;
this.yy=0;
this.timer1=0;
}

function movechip(chipname){
if (document.getElementById){
eval("chip="+chipname);
if (window.innerWidth || window.opera){
//pageX=window.pageXOffset;
//pageW=window.innerWidth-40;
//pageY=window.pageYOffset;
//pageH=window.innerHeight-20;
pageX=0;
pageW=920;
pageY=0;
pageH=700;
}
else if (document.body){
pageX=0;
pageW=920;
pageY=0;
pageH=700;
//pageX=iecompattest().scrollLeft;
//pageW=iecompattest().offsetWidth-40;
//pageY=iecompattest().scrollTop;
//pageH=iecompattest().offsetHeight-20;
} 

chip.xx=chip.xx+chip.vx;
chip.yy=chip.yy+chip.vy;

//chip.vx+=vr*(+0.6);
//chip.vy+=vr*(-0.7);
chip.vx+=vr*(Math.random()-0.5)+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();
}

document.getElementById(chip.named).style.left=chip.xx+"px";
document.getElementById(chip.named).style.top=chip.yy+"px";

//if (chip.xx >= pageW-chip.w-80 && chip.yy >= pageY-300){
//distance from untill the right browser side chip.xx >= pageW-chip.w-80
//distance from the top pageY+how_much
if ((chip.xx >= 750) && (370 <= chip.yy)){
document.getElementById(chip.named).style.left=chip.xx+"px";
document.getElementById(chip.named).style.top=chip.yy+"px";
//chip.timer1=setTimeout("hoverchip('"+chip.named+"')",100);
}
else{
chip.timer1=setTimeout("movechip('"+chip.named+"')",100);}
}
}
function hoverchip(chipname){
if (document.getElementById){
eval("chip="+chipname);
if (pos == 1){
chip.xx=chip.xx+1;
chip.yy=chip.yy-1;
pos = 2;
}
else if (pos == 2){
chip.xx=chip.xx+1;
chip.yy=chip.yy+1;
pos = 3;
}
else if (pos == 3){
chip.xx=chip.xx-1;
chip.yy=chip.yy+1;
pos = 4;
}
else if (pos == 4){
chip.xx=chip.xx-1;
chip.yy=chip.yy+1;
pos = 1;
}
document.getElementById(chip.named).style.left=chip.xx+"px";
document.getElementById(chip.named).style.top=chip.yy+"px";
chip.timer1=setTimeout("hoverchip('"+chip.named+"')",100);
}
}