// Moving Objects Script
// By Virtual_Max

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