function compartir_youtube(){
window.open("http://www.youtube.com/user/TelmexEducacion");
}
function compartir_twitter(){
window.open("http://twitter.com/home?status=Actulamente leyendo " + document.location.href);
}
function compartir_flickr(){
window.open("http://www.flickr.com/photos/pecdtyfcs/");
}
function compartir_facebook(){
window.open("http://www.facebook.com/sharer.php?u=" + document.location.href + "&t=" + document.title);
}
function compartir_rss(){
alert("Falta definir");	
//window.open("");
}