// email encode

function em(h,subject,id)
{
  var result = "";
  var string = "";
  var key = "miam";
  for (var i= (h.substr(0, 2)=="0x")?2:0; i<h.length; i+=2) {string += String.fromCharCode (parseInt (h.substr (i, 2), 16));}
  for(i=1; i<=string.length; i++)
  {
     c = string.substr(i-1,1);
     keychar = key.substr((i % key.length)-1,1);
     c = String.fromCharCode(c.charCodeAt(0)-keychar.charCodeAt(0));
     result=result+c;
   }
   if ( subject=="" ) {document.getElementById(id).href="mailto:"+result;}
   else {document.getElementById(id).href="mailto:"+result+"?subject="+subject;}
   return result;
}