function set_item_class(id)
{
    for(i=1;i<=10;i++)
    {
        if(id==i)
        {
            document.getElementById("pro_"+i+"_2").style.display="";
            document.getElementById("pro_"+i+"_2").style.background="url(/Skin/newsamr/images/item_h"+i+"_on.gif) no-repeat 0px 0px";
            document.getElementById("pro_"+i+"_1").style.display="none";
        }
        else
        {
            document.getElementById("pro_"+i+"_2").style.display="none";
            document.getElementById("pro_"+i+"_1").style.display="";
            document.getElementById("pro_"+i+"_1").style.background="url(/Skin/newsamr/images/item_h"+i+".gif) no-repeat 5px 5px";
        }
    }
}