--- jquery-ui-autocomplete-1.10.2.js	2013-06-21 11:19:32.000000000 -0700
+++ jquery-ui-autocomplete-custom.js	2013-06-21 13:07:23.000000000 -0700
@@ -76,6 +76,16 @@
       .attr( "autocomplete", "off" );
 
     this._on( this.element, {
+      click: function(event) {
+        if ( this.menu.element.is( ":visible" ) ) {
+          this._value( this.term );
+          this.close( event );
+          // Different browsers have different default behavior for escape
+          // Single press can mean undo or clear
+          // Double press in IE means clear the whole form
+          event.preventDefault();
+        }
+      },
       keydown: function( event ) {
         /*jshint maxcomplexity:15*/
         if ( this.element.prop( "readOnly" ) ) {
@@ -106,6 +116,7 @@
           suppressKeyPress = true;
           this._keyEvent( "next", event );
           break;
+        case keyCode.SPACE:
         case keyCode.ENTER:
         case keyCode.NUMPAD_ENTER:
           // when menu is open and has focus
@@ -121,6 +132,7 @@
           if ( this.menu.active ) {
             this.menu.select( event );
           }
+          event.preventDefault();
           break;
         case keyCode.ESCAPE:
           if ( this.menu.element.is( ":visible" ) ) {
@@ -142,7 +154,7 @@
       keypress: function( event ) {
         if ( suppressKeyPress ) {
           suppressKeyPress = false;
-          event.preventDefault();
+          // event.preventDefault();
           return;
         }
         if ( suppressKeyPressRepeat ) {
