var xPos3 = 700;
var yPos3 = 500; 
var step3 = 1;
var delay3 = 50; 
var width3 = 0;
var height3 = 0;
var Hoffset3 = 0;
var Woffset3 = 0;
var yon3 = 0;
var xon3 = 0;
var pause3 = true;
var interval3;
img3.style.top = yPos3;
function changePos3() 
{
	width3 = document.body.clientWidth;
	height3 = document.body.clientHeight;
	Hoffset3 = img3.offsetHeight;
	Woffset3 = img3.offsetWidth;
	img3.style.left = xPos3 + document.body.scrollLeft;
	img3.style.top = yPos3 + document.body.scrollTop;
	if (yon3) 
		{yPos3 = yPos3 + step3;}
	else 
		{yPos3 = yPos3 - step3;}
	if (yPos3 < 0) 
		{yon3 = 1;yPos3 = 0;}
	if (yPos3 >= (height3 - Hoffset3)) 
		{yon3 = 0;yPos3 = (height3 - Hoffset3);}
	if (xon3) 
		{xPos3 = xPos3 + step3;}
	else 
		{xPos3 = xPos3 - step3;}
	if (xPos3 < 0) 
		{xon3 = 1;xPos3 = 0;}
	if (xPos3 >= (width3 - Woffset3)) 
		{xon3 = 0;xPos3 = (width3 - Woffset3);   }
	}
	
	function start()
	 {
	 	img3.visibility = "visible";
		interval = setInterval('changePos3()', delay);
	}
	function pause_resume() 
	{
		if(pause) 
		{
			clearInterval(interval);
			pause = false;}
		else 
		{
			interval = setInterval('changePos3()',delay);
			pause = true; 
			}
		}
	start();
	
	function displayDiv3()
	{
		var obj=document.getElementById('img3');
		if(obj.style.display=="none"){
			obj.style.display="";
		}else{
			obj.style.display="none";
		}
	}