var Index_Timer=setTimeout("ShowImage1()",200);  
function ShowImage1()
{
if(Index_Timer)
	clearTimeout(Index_Timer);
if(document.getElementById("indexImg1"))
	document.getElementById("indexImg1").src="/img/photo/ad_1.jpg";
if(document.getElementById("indexImg2"))
	document.getElementById("indexImg2").src="/img/photo/ad_2.jpg";
}