+});
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+ jQuery.expr.filters.hidden = function(elem){
+ var width = elem.offsetWidth, height = elem.offsetHeight,
+ force = /^tr$/i.test( elem.nodeName ); // ticket #4512
+
+ return width === 0 && height === 0 && !force ?
+ true :
+ width !== 0 && height !== 0 && !force ?
+ false :
+ jQuery.curCSS(elem, "display") === "none";
+ };
+
+ jQuery.expr.filters.visible = function(elem){
+ return !jQuery.expr.filters.hidden(elem);
+ };
+}