var obimg1 = new Array();

	var ob1_1="3283";
	var ob1_2="3178";
	var ob1_3="3132";
	var ob1_4="2840";

obimg1[1]=ob1_1
obimg1[2]=ob1_2
obimg1[3]=ob1_3
obimg1[4]=ob1_4

var obanIndex1 = Math.ceil(Math.random() * 1);

function oadChange() {
	
//alert("test");	
	

if(obanIndex1 >= 5) { obanIndex1 = 1; }

var obhtm1="<a href='download.php?index="+obimg1[obanIndex1]+"'><img src='images_promo/side/"+obimg1[obanIndex1]+".jpg' alt='Julia Banner' border='0' /></a>";

document.getElementById("ob1").innerHTML=obhtm1;

obanIndex1++

setTimeout("oadChange()", 10000);
}