var imgSN = new imgObject('/images/0_bul_nav1.gif','/images/0_bul_nav1downact.gif');
var imgBB = new imgObject('/images/0_bul_nav2.gif','/images/0_bul_nav2act.gif');
var imgAR = new imgObject('/images/0_bul_nav1.gif','/images/0_bul_nav1act.gif');

function changeStyleById(id,clr){
if (document.getElementById)
   {
   var nodeObj = document.getElementById(id);
   //alert("nodeObj = " +nodeObj)
   if(nodeObj != null){	
   		nodeObj.style.color = clr;
		}
   }
}