xajax.realCall = xajax.call;

xajax.call = function(sFunction, aArgs, sRequestType)
{
	this.$('warten').style.display = 'inline'; 
	this.realCall(sFunction, aArgs, sRequestType);
}

xajax.realProcessResponse = xajax.processResponse;

xajax.processResponse = function(xml)
{
	this.$('warten').style.display = 'none';
	this.realProcessResponse(xml);
}