function doAjaxResult(o , req)
	{
		alert(o.responseText );
		var m = getJsonErrors(o);
		var data = m.records[0].data;
		Ext.MessageBox.alert('提示框', data['msg']);	
		if(m['success'] == true)
		{			

		}
		else
		{

		}						
	}
		   
	function getJsonErrors(o)
	{
	   var myReader = new Ext.data.JsonReader({
	            root: 'results',
	            successProperty: 'success'
	        }, [
				{name: 'msg', mapping: 'msg'}
	        ]);
		var jsonM = myReader.read(o);
		return jsonM;		
	}