share.js

ar social = function() {
    jQuery("a[href*='twitter.com/intent']").unbind();

    var socialpopup = function( url, title, width, height ) {
        var top = ( screen.height / 2 ) - ( height / 2 );
        var left = ( screen.width / 2 ) - ( width / 2 );

        window.open( url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + width + ', height=' + height + ', top=' + top + ', left=' + left );
    };

    jQuery("a[href*='facebook.com/sharer']").click(function( event ) {
        event.preventDefault();
        var url = jQuery(this).attr("href");
        socialpopup( url, "Share on Facebook", 550, 520 );
    });

    jQuery("a[href*='twitter.com/intent']").click(function( event ) {
        event.preventDefault();
        var url = jQuery(this).attr("href");
        socialpopup( url, "Share on Twitter", 550, 520 );
    });
};

jQuery(function() {
    social();
});