function submitSocialLink_Delicious(doc) {
   var h;
   var title = doc.getElementById("titlestring");
   
   if (title == undefined || title == null) {
      //alert ("titlestring not found.");
      h="";
   } else {
      h=encodeURIComponent(title.firstChild.nodeValue);
   }
   
   window.open('http://del.icio.us/post?v=4&noui&jump=close&url='+location.href+'&title=' + h);
}

function submitSocialLink_Digg(doc) {
   var h;
   var title = doc.getElementById("titlestring");

   if (title == undefined || title == null) {
      //alert ("titlestring not found.");
      h="";
   } else {
      h=encodeURIComponent(title.firstChild.nodeValue);
   }

   window.open('http://digg.com/submit?phase=2&url='+location.href+'&title=' + h);
}

function submitSocialLink_Newsvine(doc) {
   var h;
   var title = doc.getElementById("titlestring");
   var u = location.href;

   if (title == undefined || title == null) {
      //alert ("titlestring not found.");
      h="";
   } else {
      h=encodeURIComponent(title.firstChild.nodeValue);
   }

   if(window.getSelection){sel=window.getSelection()}
   else if(document.getSelection){sel=document.getSelection()}
   else if(document.selection){sel=document.selection.createRange().text}
   else{sel=''};

   void(window.open('http://www.newsvine.com/_wine/save?ver=2&popoff=1&u='+encodeURIComponent(u)+'&h='+h+'&s='+encodeURIComponent(sel)));
}