function externalLinks() {
    if (!document.getElementsByTagName) return;
      var anchors = document.getElementsByTagName("a");
        for (var i=0; i<anchors.length; i++) {
          var anchor = anchors[i];
          if (anchor.getAttribute("href") &&
            anchor.getAttribute("rel") == "external")
            anchor.target = "_blank";
      }
    }
    /** Install the safety net to catch external links - START **/
    if (window.onload_functions) // prosilver
    {
    	onload_functions.push('externalLinks()');
    }
    else if (typeof(window.addEventListener) != 'undefined') // DOM
    {
    	window.addEventListener('load', externalLinks, false);
    }
    else if (typeof(window.attachEvent) != 'undefined') // MSIE
    {
    	window.attachEvent('onload', externalLinks);
    }
    /** Install the safety net to catch external links - END **/