1,width=600,height=350' ); return false; }); var windowOpen; jQuery( document.body ).on( 'click', 'a.share-facebook', function() { // If there's another sharing window open, close it. if ( 'undefined' !== typeof windowOpen ) { windowOpen.close(); } windowOpen = window.open( jQuery( this ).attr( 'href' ), 'wpcomfacebook', 'menubar=1,resizable=1,width=600,height=400' ); return false; });