isDOM=document.getElementById;
isMSIE=document.all && document.all.item;
isNetscape4=document.layers;
isOpera=window.opera;
isOpera5=isOpera && isDOM;
isMSIE5=isDOM && isMSIE && !isOpera;
isMozilla=isNetscape6=isDOM && !isMSIE && !isOpera;

function getLayer(layerName){
	if(isDOM){ return document.getElementById(layerName); }
	if(isMSIE){ return document.all[layerName]; }
	if(isNetscape4){ return eval('document.layers[layerName]'); }
	return false;
}
function um(s) {
	var n=0;
	var r="";
	for(var i=0;i<s.length;i++) {
		n=s.charCodeAt(i);
		r+=String.fromCharCode(n-(2));
	}
	r='<a href="mailto:'+r+'" target="_blank">'+r+'</a>';
	return r;
}