function changeImage(imgname, targetId) {
			var img = "/images/common/"+imgname+".jpg";
			eval("document.getElementById('"+targetId+"').src='"+img+"';");
		}
		
		function displaysub(targetId, stat) {
			if(stat=="show") {
				eval("document.getElementById('"+targetId+"').style.display='';");
			} else if(stat=="hide") {
				eval("document.getElementById('"+targetId+"').style.display='none';");			
			}
		}