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"; 
 } 
 
 
 
 
var forms = document.getElementsByTagName("form"); 
for(var i = 0; i < forms.length; i++) 
 { 
   var form = forms[i]; 
   if(form.getAttribute("action").substring(0, 4) == "http") 
   { 
      form.target = "_blank"; 
   } 
 } 

} 
window.onload = externalLinks;