function changeHeader(searchCategory){
//alert(searchCategory);
var obj = document.getElementById("HeaderImage");
if (searchCategory == '35' || searchCategory == '36' || searchCategory == '35,36')
{
var imagesArray = new Array();
for(var i=0; i<=6; i++)
{imagesArray[i] = "/images/banners/banner" + i + ".jpg";}
var randomnumber=Math.floor(Math.random()*7);
obj.src = imagesArray[randomnumber];

}
else if (searchCategory == '37' || searchCategory == '38' || searchCategory == '39' || searchCategory == '40' || searchCategory == '37,38,39,40,41')
{
var imagesArray = new Array();
for(var i=0; i<=2; i++)
{imagesArray[i] = "/images/banners/commercial/commercial_" + i + ".jpg";}
var randomnumber=Math.floor(Math.random()*3);
obj.src = imagesArray[randomnumber];
}
else
    obj.src = "/images/templateimages/header.jpg";
}