YAHOO.namespace("dwr");
Event.observe(window, "load", function(event) {
	dwr.engine.setPreHook(function() {
		var disabledZone = $('disabledZone');
		if(disabledZone)
		  disabledZone.style.visibility = 'visible';
	});
	
	dwr.engine.setPostHook(function() {
		var disabledZone = $('disabledZone');
		if(disabledZone)
			disabledZone.style.visibility = 'hidden';
	});
	
	dwr.engine.setErrorHandler(YAHOO.dwr.erroHandler);
});

YAHOO.dwr.errorHandler = function(e) {
	window.location.reload();
}