var nn4=(document.layers)? true:false;
var nn6=(document.getElementById)? true:false;
var ie4=(document.all)? true:false;
var ie5=false;
if(ie4){
if((navigator.userAgent.indexOf('MSIE 5')> 0)||(navigator.userAgent.indexOf('MSIE 6')> 0)||window.opera){ 
ie5=true; 
} 
if(nn6){
nn6=false;
}
}
 

	function hide(ident) {
		if(nn4) {
			document.layers[ident].visibility = "hide";
		} else if(ie4) {
			document.all[ident].style.visibility = "hidden";
		} else if(nn6) {
			document.getElementById(ident).style.visibility = "hidden";
		}
	}
function show(ident) {
		if(nn4) {
			document.layers[ident].visibility = "show";
		} else if(ie4) {
			document.all[ident].style.visibility = "visible";
			
			
		} else if(nn6) {
			document.getElementById(ident).style.visibility = "visible";
			
		}
	}