代码Ext.onReady(function(){Ext.QuickTips.init();Ext.namespace('TimeTracker');TimeTracker.dataStore=newExt.data.JsonStore({root:'timecardEntries',url:'php/scripts/timecardEntry.script.php',storeId:'timesheet',autoLoad:true,autoSave:true,writer:newExt.data.JsonWriter({encode:true}),fields:[{name:'id