function emdecrypt (Str){
   var s = new String; var i;
   for (i=0; i<Str.length; i+=2) s = s + String.fromCharCode (parseInt (Str.substr(i ,2), 16)^(i/2));
   return s;
}

function email() {
	var p = document.body.innerHTML;
	var rEX = RegExp(/(#EM#[\w]+#EM#)/g);
	var mEX = p.match(rEX);
	if(mEX && mEX.length){
    for(var i=0;i<mEX.length; i++) p=p.replace(mEX[i],emdecrypt(mEX[i].replace(/#EM#/g,'')));
    document.body.innerHTML=p;
  }
}