/* Utility functions */

function dF(s){
	var s1=unescape(s.substr(0,s.length-1)); var t='';
	for(i=0;i<s1.length;i++)t+=String.fromCharCode(s1.charCodeAt(i)-s.substr(s.length-1,1));
	return unescape(t);
}

function eF(s){
	s=escape(s);
	var ta=new Array();
	for(i=0;i<s.length;i++)ta[i]=s.charCodeAt(i)+1;
	return ""+escape(eval("String.fromCharCode("+ta+")"))+1;
}