为何Ext 中的panel中的grid不显示呢？当点击好几次的时候才出现，而且还是重复的呢？

var widgetarr=new Array("weblist","webrsslist","newslist","bloglist","booklist","piclist","videolist","relatedlist","wikilist","saylist","historylist","bbslist","tiebalist","wikiknowledgelist","minibloglist","rsslist");

var wiget_typeid=0;

var wiget_kid=0;

var wiget_keyword='';

var wiget_cid=0;



var seoPanel=function(id,keyword,cid){

		wiget_kid=id;

	   wiget_keyword=keyword;

	   wiget_cid=cid;

		//alert(wiget_cid);

	//record,数据记录，用在store中

	//通过Ext.data.Record.create创建

	//创建的数据形式为{name:'id',type:'text'}

	//与jsonStore下data中存储的数组形式对应

	var widgetRecord=Ext.data.Record.create([

	     {name:'id'},{name:'wtname'},{name:'tid'},{name:'author'},{name:'mininfo'},{name:'maxinfo'},{name:'mininterval'},

	     {name:'create_time'},{name:'update_time'},{name:'typeid'},{name:'ctablenum'},{name:'memcachesavenum'},{name:'roleid'}		   	

	]);

	// widgetstore

	var widgetStore=new Ext.data.Store({

		 id:'widgetstore',

		 url:urlbase+'searchsource/searchsourceinterface/id:'+id+'/keyword:'+keyword+'/cid:'+cid,

		 reader:new Ext.data.JsonReader({

	   		url:urlbase+'searchsource/searchsourceinterface/id:'+id+'/keyword:'+keyword+'/cid:'+cid,//默认的数据源地址，继承时需要提供

	   		root: "rows",

//					totalProperty:"totalCount",

				},widgetRecord),

			remoteSort:true, 

		});

	widgetStore.load({callback :function(r,options,success){ 

		//var ctablenum=r[0].get('ctablenum');

		

		//weblistPanel=weblistPanel(id,cid,1,ctablenum,keyword);

		//webrsslistPanel=webrsslistPanel(id,cid,2,ctablenum,keyword);

//		newslistPanel=newslistPanel(id,cid,3,ctablenum,keyword);

//		bloglistPanel=bloglistPanel(id,cid,4,ctablenum,keyword);

//		booklistPanel=booklistPanel(id,cid,5,ctablenum,keyword);

//		piclistPanel=piclistPanel(id,cid,6,ctablenum,keyword);

		

		//seoPanel1.add(weblistPanel);

		//seoPanel1.add(webrsslistPanel);

//		seoPanel1.add(newslistPanel);

//		seoPanel1.add(bloglistPanel);

//		seoPanel1.add(booklistPanel);

//		seoPanel1.add(piclistPanel);

		

	/*	*/

		//seoPanel1.add({title:'11',html:'sssss'});

			for(var i=0;i<6;i++)

			{

				//alert(r[i].get('id'));

				var typeid=r[i].get('typeid');

				var cid=r[i].get('cid');

				var wigetId=r[i].get('id');

				var ctablenum=r[i].get('ctablenum');

				var wtname=r[i].get('wtname');

				var panel=getPanelName(wigetId,id,cid,typeid,ctablenum,wtname,keyword);

			

				if(i==0)

				{

					

					//alert("-------------");

					weblistPanel=weblistPanel_bak(id,cid,typeid,ctablenum,keyword,panel);

					//alert(weblistPanel.id);

					//panel.add(weblistPanel);

					//panel.add({tile:'11',html:'sssss'});

				}



				//panel.add({title:'11',html:'sssss'});

				//alert(i);

				//alert(panel.id);

				seoPanel1.add(panel);

				seoPanel1.doLayout();

				

				

			}

	 

		}

		

	});

	

	

	function getPanelName(id,kid,cid,typeid,ctablenum,wtname,keyword)

	{

	/*

		var item;

		if(id==1)

		{

			item=[{title:'1111',html:'2222222'}];

		}

		*/

		var seoPanel3=new Ext.Panel({

			id:"w_widgetPanel"+id,

//			activeItem:1,

			title:wtname,

			region : 'center',

			autoHeight:true,

			margins : '0 5 5 0',

			//resizeTabs : true,

			minTabWidth : 50,

			tabWidth : 85,

			enableTabScroll : true,

			closable:true,

			layout:'fit',

			//调用其他微件加载事件

			param1:kid,

			param2:cid,

			param3:typeid,

			param4:ctablenum,

			param5:keyword,

			

			// listeners: {activate: handleActivate},

			listeners: {activate: handleActivate},

			 

			//items:[{title:'1111',html:'2222222'}]

//			items:item

			

			



		});

		return seoPanel3;

	}

	   function handleActivate(tab){

       //alert(tab.param1+tab.id+ ' was activated.');

	   var id=tab.param1;

	   var cid=tab.param2;

	   var typeid=tab.param3;

	   var ctablenum=tab.param4;

	   var keyword=tab.param5;

	  // alert(id);

	   //gei 全局的typeid,kid,keyword,cid赋值

	   wiget_typeid=typeid;

		//tab

		//tab.removeAll();	

	   	panel=weblistPanel_bak(id,cid,typeid,ctablenum,keyword,tab);	

		tab.doLayout();		

		//seoPanel1.add(panel);

		//seoPanel1.doLayout();

		

    }

	

	var seoPanel1=new Ext.TabPanel({

		id:"widgetPanel",

		title:"关键词优化",

		region : 'center',

		autoHeight:true,

		margins : '0 5 5 0',

		//resizeTabs : true,

		//minTabWidth : 50,

		tabWidth : 85,

		enableTabScroll : true,

		activeTab :0,

		closable:true,

		layoutOnTabChange:true,		

		deferredRender :false



		



		



	});

	

	var panel = new Ext.Panel({

		title:'关键词优化',

		region:'center',

		height:500,

		autoScroll:true,

		closable:true,

		tbar:new Ext.Toolbar([

		                      {xtype:'hidden',name:'typeid'},

		  	                '->',

		  	                {

		  	                	text:'审批模式',

		  	                	iconCls:'shenpiIconCss',

		  	                	handler:function(){

									alert(wiget_typeid+"----"+wiget_keyword+"----"+wiget_kid+'---'+wiget_cid);

		  	                		//var panel=Ext.getCmp('')

		  	                	}

		  	                		

		  	                },'-',

		  	                {

		  	                	text:'参数模式',

		  	                	iconCls:'canshuIconCss',	

		  	                },'-',

		  	                {

		  	                	text:'预览',

		  	                	iconCls:'bqylIconCss',

		  	                },'-',

		  	                {

		  	                	text:'提交',

		  	                	iconCls:'bqtjIconCss',	

		  	                },'-',

		  	                {

		  	                	text:'保存',

		  	                	iconCls:'bqbcIconCss',	

		  	                },'-',

		  	                {

		  	                	text:'上一词',

		  	                	iconCls:'shangyiciIconCss',

		  	                },'-',

		  	                {

		  	                	text:'下一词',

		  	                	iconCls:'xiayiciIconCss',	

		  	                }

		  	             ]),

		

		items:[seoPanel1]

	});

//	weblistPanel=weblistPanel();

//	seoPanel1.add(weblistPanel);

	

//	return seoPanel1;

	return panel;

}