// JavaScript Document
function show()
{
	var t=setTimeout("firstfun()",3000);
}
function firstfun()
{
	document.getElementById('img2').style.display="block";
	document.getElementById('img1').style.display="none";
	document.getElementById('img3').style.display="none";
	document.getElementById('img4').style.display="none";
	var t=setTimeout("secondfun()",3000);
	
}
function secondfun()
{
	document.getElementById('img2').style.display="none";
	document.getElementById('img1').style.display="none";
	document.getElementById('img3').style.display="block";
	document.getElementById('img4').style.display="none";
	var t=setTimeout("thirdfun()",3000);
}
function thirdfun()
{
	document.getElementById('img2').style.display="none";
	document.getElementById('img1').style.display="none";
	document.getElementById('img3').style.display="none";
	document.getElementById('img4').style.display="block";
	var t=setTimeout("forthfun()",3000);
}
function forthfun()
{
	document.getElementById('img2').style.display="none";
	document.getElementById('img1').style.display="block";
	document.getElementById('img3').style.display="none";
	document.getElementById('img4').style.display="none";
	var t=setTimeout("firstfun()",3000);
}