+ data = jQuery.data( elem, "_change_data" );
+ val = getVal(elem);
+
+ if ( val === data ) {
+ return;
+ }
+
+ // the current data will be also retrieved by beforeactivate
+ if ( e.type !== "focusout" || elem.type !== "radio" ) {
+ jQuery.data( elem, "_change_data", val );
+ }
+
+ if ( elem.type !== "select" && (data != null || val) ) {
+ e.type = "change";
+ return jQuery.event.trigger( e, arguments[1], this );
+ }
+}
+
+jQuery.event.special.change = {
+ filters: {
+ focusout: testChange,
+
+ click: function( e ) {
+ var elem = e.target, type = elem.type;
+
+ if ( type === "radio" || type === "checkbox" || elem.nodeName.toLowerCase() === "select" ) {
+ return testChange.call( this, e );
+ }
+ },
+
+ // Change has to be called before submit
+ // Keydown will be called before keypress, wich is used in submit-event delegation
+ keydown: function( e ) {
+ var elem = e.target, type = elem.type;
+
+ if ( (e.keyCode === 13 && elem.nodeName.toLowerCase() !== "textarea") ||
+ (e.keyCode === 32 && (type === "checkbox" || type === "radio")) ||
+ type === "select-multiple" ) {
+ return testChange.call( this, e );
+ }
+ },
+
+ // Beforeactivate happens also before the previous element is blurred
+ // with this event you can't trigger a change event, but you can store
+ // information/focus[in] is not needed anymore
+ beforeactivate: function( e ) {
+ var elem = e.target;
+
+ if ( elem.nodeName.toLowerCase() === "input" && elem.type === "radio" ) {
+ jQuery.data( elem, "_change_data", getVal(elem) );
+ }