[Admin]

Here's your right function:

function checkurl($url, $hyperlink="") {
  $righturl = $url;
  if(!preg_match("![a-z]://!si", $url)) {
    $righturl = "http://$righturl";
  }
  $righturl = "http://freemail.web.de/jump.htm?url=" . $righturl;
  // remove threat of users including javascript in url
  /*$righturl = preg_replace("/javascript:/si", "java script:", $righturl);
  $righturl = preg_replace("/about:/si", "about :", $righturl);*/
  $hyperlink = iif(trim($hyperlink)=="" or $hyperlink==$url, iif(strlen($url)>55,substr($url,0,35)."...".substr($url,-15),$url) ,$hyperlink);
  return "<a href=\"$righturl\" target=\"_blank\">".str_replace('\"', '"', $hyperlink)."</a>";
}