+ getVal = function( elem ) {
+ var type = elem.type, val = elem.value;
+
+ if ( type === "radio" || type === "checkbox" ) {
+ val = elem.checked;
+
+ } else if ( type === "select-multiple" ) {
+ val = elem.selectedIndex > -1 ?
+ jQuery.map( elem.options, function( elem ) {
+ return elem.selected;
+ }).join("-") :
+ "";
+
+ } else if ( elem.nodeName.toLowerCase() === "select" ) {
+ val = elem.selectedIndex;
+ }
+
+ return val;
+ },
+
+ testChange = function testChange( e ) {
+ var elem = e.target, data, val;
+
+ if ( !rformElems.test( elem.nodeName ) || elem.readOnly ) {
+ return;
+ }
+
+ data = jQuery._data( elem, "_change_data" );
+ val = getVal(elem);
+
+ // the current data will be also retrieved by beforeactivate
+ if ( e.type !== "focusout" || elem.type !== "radio" ) {
+ jQuery._data( elem, "_change_data", val );
+ }
+
+ if ( data === undefined || val === data ) {
+ return;
+ }
+
+ if ( data != null || val ) {
+ e.type = "change";
+ e.liveFired = undefined;
+ return jQuery.event.trigger( e, arguments[1], elem );
+ }
+ };
+
+ jQuery.event.special.change = {
+ filters: {
+ focusout: testChange,