function URLDecode(psEncodeString) 
{
  // Create a regular expression to search all +s in the string
  var lsRegExp = /\+/g;
  // Return the decoded string
  return unescape(String(psEncodeString).replace(lsRegExp, " ")); 
}

var thisContent = URLDecode('%3Ca+href%3D%22http%3A%2F%2Fwww%2Empzad%2Ecom%2Fserv%2Fcl%2Easp%3Fcid%3D5%26uid%3D1%26bid%3D43%22+target%3D%22%5Fblank%22%3E%3Cimg+src%3D%22http%3A%2F%2Fwww%2Empzad%2Ecom%2FcData%2F1%2F5%2F200912111132%2Epng%22+border%3D%220%22+alt%3D%22MPZMail+%2D+Email+marketing%22+title%3D%22MPZMail+%2D+Email+marketing%22%3E%3C%2Fa%3E%3Cdiv+style%3D%22text%2Dalign%3A+right%3B+font%2Dsize%3A+10px%3B+width%3A120px%3B%22%3E%3Ca+href%3D%22http%3A%2F%2Fwww%2Empzad%2Ecom%22+target%3D%22%5Fblank%22%3EMPZAd%3C%2Fa%3E%3C%2Fdiv%3E');
document.write(thisContent);