function changebg(id){
	   document.getElementById(id).style.cursor="pointer";   
	   document.getElementById(id).style.color="#fff";
   	   document.getElementById(id).style.background="#fff url('../../style library/images/css/header_bg.gif') no-repeat 0 0";
   }
   
     function defaultbg(id){
	   document.getElementById(id).style.color="#000";
	   document.getElementById(id).style.background="transparent url('../../style library/Images/css/nav_bacgrnd.jpg') repeat 0 0";
   }
   
   function fnbuyo(id){
        if(id!= null)
            {id.src = "/Style%20Library/images/css/btn_buy_hover.jpg";}
   }
   
   function fnbuy(id){
        if(id!= null)
            {id.src = "/Style%20Library/images/css/btn_buy.jpg";}
   }