rem: this.failureHandler = failureHandler != null ? failureHandler : function() { }; 
add: this.successHandler = successHandler != null ? successHandler : function() { }; 
context: 		this.failureHandler = failureHandler != null ? failureHandler : function() { };
meta: 1204	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1204/1be8450e01e25892bc3ef642c4e78568294af10f/wicket-ajax.js/clean/wicket/src/java/wicket/ajax/wicket-ajax.js