// JavaScript graphic bounce utility.  Copyright 2010 L & R Distributing, Inc.

var bi = 0;
var imgLeft;
var imgTop;
var bt;
var by;
var l;
var scale = 10;
var ycoord = 0;
var xcoord = 0;
var elem;

function PicketBounce()
	{
	if(bi <= 600)
		{
		l = (((bi % 100) - 50)/ scale);
		by = (l * l * 2);
		document.images['picketg'].style.left = (imgLeft + bi) + "px";
		document.images['picketg'].style.top = (imgTop + by) + "px";
		bi= bi + 2;
		}
	else
		{
		bi = 0;		
		}
	}

function PicketStart()
	{	
	elem = document.getElementById('BkGnd');
	while(elem)
		{	
		xcoord += elem.offsetLeft;
		ycoord += elem.offsetTop;
		elem = elem.offsetParent;
		}
	imgLeft = (xcoord + 15);
	imgTop = ycoord + 15;
	document.images['picketg'].style.left = imgLeft + "px";
	document.images['picketg'].style.top = imgTop + "px";	
	bt = setInterval('PicketBounce()', 80);
	document.images['picketg'].style.visibility = "visible";
	return 0;
	}

function brecalib()
	{
	xcoord = 0;
	ycoord = 0;
	elem = document.getElementById('BkGnd');
	while(elem)
		{	
		xcoord += elem.offsetLeft;
		ycoord += elem.offsetTop;
		elem = elem.offsetParent;
		}
	imgLeft = (xcoord + 15);
	imgTop = ycoord + 15;
	return 1;
	}