var xPos = 300;
var yPos = 200; 
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;

function changePos() 
{
	width = document.documentElement.clientWidth;
	height = document.documentElement.clientHeight;
	Hoffset = floatimg.offsetHeight;
	Woffset = floatimg.offsetWidth;
	floatimg.style.left = (xPos + document.documentElement.scrollLeft) + "px";
	floatimg.style.top = (yPos + document.documentElement.scrollTop) + "px";
	//document.title = floatimg.style.left;
	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 floatadstart()
{
	try
	{
		floatimg.style.top = yPos;
		floatimg.visibility = "visible";
		interval = setInterval('changePos()', delay);
	}
	catch (e)
	{
		//alert(e);
	}
}
function pause_resume() 
{
	if(pause) 
	{
		clearInterval(interval);
		pause = false;}
	else 
	{
		interval = setInterval('changePos()',delay);
		pause = true; 
	}
}

function hidead() {
	floatimg.style.display = 'none';
}