rem: lastFocusId=event.target.id; 
add:   if ( !event ) { event = window.event; }    var target = event.target ? event.target : event.srcElement; lastFocusId=target.id; 
context: 	setFocus: function(event)	{ 		lastFocusId=event.target.id;		Wicket.Log.info("focus set on " + lastFocusId);	},
meta: 1204	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1204/908ea421b51bf33958e5be5d8a77478e6954f4ce/wicket-ajax.js/buggy/wicket/src/main/java/wicket/ajax/wicket-ajax.js