<!-- Begin
var xPos = 20;
var yPos = document.body.clientHeight;
var step = 1;
var delay = 30; 
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img.style.top = yPos;
function changePos()
{
	width = document.body.clientWidth;
	height = document.body.clientHeight;
	Hoffset = img.offsetHeight;
	Woffset = img.offsetWidth;
	img.style.left = xPos + document.body.scrollLeft;
	img.style.top = yPos + document.body.scrollTop;
if (yon)
{
	yPos = yPos + step;
}
else
{
	yPos = yPos - step;
}
if (yPos < 0)
{
	yon = 1;
	yPos = 0;
}
if (yPos >= (height - Hoffset))
{
	yon = 0;
	yPos = (height - Hoffset);
}
if (xon)
{
	xPos = xPos + step;
}
else
{
	xPos = xPos - step;
}
if (xPos < 0)
{
	xon = 1;
	xPos = 0;
}
if (xPos >= (width - Woffset))
{
	xon = 0;
	xPos = (width - Woffset);
}
}
function start()
{
	img.visibility = "visible";
	interval = setInterval('changePos()', delay);
}
function stops()
{
	clearInterval(interval);
}
start();
//End-->