function facebook_click(id) 
{
  if (typeof id == "undefined") 
  { 
    u = location.href; 
  } 
  else 
  {
    u = id; 
  }
  t=document.title;
  window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');
  return false;
}

function linkedin_click(id, summary, source) 
{
  if (typeof id == "undefined") 
  { 
    u = location.href; 
  } 
  else 
  {
    u = id; 
  }
  t=document.title;
  window.open('http://www.linkedin.com/shareArticle?mini=true&url='+encodeURIComponent(u)+'&title='+encodeURIComponent(t)+'&summary='+encodeURIComponent(summary)+'&source='+encodeURIComponent(source),'sharer','toolbar=0,status=0,width=520,height=570');
  return false;
}

function delicious_click(id) 
{
  if (typeof id == "undefined") 
  { 
    u = location.href; 
  } 
  else 
  {
    u = id; 
  }
  t=document.title;
  window.open('http://delicious.com/save?url='+encodeURIComponent(u)+'&title='+encodeURIComponent(t)+'&noui=1&jump=no','deliciousuiv5','location=yes,links=no,scrollbars=no,toolbar=no,width=550,height=550');
  return false;
}