function showCss(id,id2){
	var obj=document.all && document.all(id)
	 || document.getElementById && document.getElementById(id);
	
	var obj2=document.all && document.all(id2)
	 || document.getElementById && document.getElementById(id2);
	 
	if(obj) obj.style.visibility="visible";
	if(obj2) obj2.style.visibility="hidden";
}