var id="header";


var imgArray=new Array("header_32.jpg","header_13.jpg","header_31.jpg","header_29.jpg","header_25.jpg","header_26.jpg","header_34.jpg","header_33.jpg","header_30.jpg","header_01.jpg","header_02.jpg","header_03.jpg","header_04.jpg","header_05.jpg","header_06.jpg","header_08.jpg","header_10.jpg","header_11.jpg","header_12.jpg","header_15.jpg","header_17.jpg","header_18.jpg","header_19.jpg","header_20.jpg","header_38.jpg","header_21.jpg","header_22.jpg","header_23.jpg","header_24.jpg","header_27.jpg","header_28.jpg");


if(document.getElementById) MakeHeader();

function MakeHeader(){

var el=document.getElementById(id);
if(el) el.style.background="url("+RandomImage()+")";
else setTimeout("MakeHeader()",100);
}

function RandomImage(){
return(imgArray[Math.round(Math.random()*(imgArray.length-1))]);
}