function mask(n,d) {
	var string = "<a href='"+"ma"+"ilt"+"o:"+n+"@"+d+"'>"+n+"@"+d+"</a>";
	document.write(string);
}

function popup(url,x,y) {                      
	var posX   = (screen.availWidth-x)/2;
	var posY   = (screen.availHeight-y)/2; 
	window.open( url,"","width=" + x + ",height=" + y + ",scrollbars=0,resizable=0,screenX=" + posX + ",screenY=" + posY + ",left=" + posX + ",top=" + posY + "");
}