function ch1(x) {
	var yy=2;
	var z=0;
	var xx="";
	for(var y=0;y<x.length;y++) {
		z=x.charCodeAt(y);
		xx+=String.fromCharCode(z-yy);
	}
	return xx;
}
function mail(x) {
	location.href=ch1(x);
}