$(document).ready(function() {

    // eventos
    $(".noticia-contenedor").bind("mouseover", function() {
        $(this).children(".social").show();
    });

    $(".noticia-contenedor").bind("mouseout", function() {
        $(this).children(".social").hide();
    });

});

function popup(url, ancho, alto)
{
    window.open(url, 'popup', 'width='+ancho+',height='+alto+',resizable=yes,scrollbars=yes,location=no');
}