xajax.callback.global.onRequest = function() {
			xajax.$('loading').style.display = 'block';
		//document.getElementById('loading2').style.display = 'block';
		}
		xajax.callback.global.beforeResponseProcessing = function() {
			xajax.$('loading').style.display='none';
			//document.getElementById('loading2').style.display = 'none';
		}