调试易

Ext.onReady(function()
{
       var data=[[1,'a','a','a.com'],[2,'b','b','b.com'],[3,'c','c','c.com'],[4,'d','d','asdfd.com']];
           var store=new Ext.data.ArrayStore({data:data,fields:["id","name","organization","homepage"]});
           var help1=new Ext.grid.GridPanel({
            title:"中国java开发团队1",
                   height:150,
                   autoExpandColumn:1,
                   width:800,
                   columns:[{header:"项目名称",dataIndex:"name"},{header:"开发团队",dataIndex:"organization"},{header:"网址",dataIndex:"homepage"}],
                   store:store}
                    );
            var help2=new Ext.grid.GridPanel({
         title:"中国java开发团队2",
               height:150,
               width:800,
               columns:[{header:"项目名称",dataIndex:"name"},{header:"开发团队",dataIndex:"organization"},{header:"网址",dataIndex:"homepage"}],
               store:store,
               autoExpandColumn:1}
                );
            var help3=new Ext.grid.GridPanel({
         title:"中国java开发团队3",
                height:150,
                autoExpandColumn:1,
                width:800,
                columns:[{header:"项目名称",dataIndex:"name"},{header:"开发团队",dataIndex:"organization"},{header:"网址",dataIndex:"homepage"}],
                store:store}
                 );
            var obj={
                      width:800,
                      heght:1000,
                      activeTab:0,
                      frame:true,
               
                      tabPosition: 'bottom',
                      items:[help1,
                          help2,help3]
                     };
           var panel=new Ext.TabPanel(obj);
           panel.render("hello");
    });
<div id="hello" height=1000></div>这是我做的一个实验，三个gridpanel的数据源都是一个，但是第一个help1在IE就是不能正常显示，后面两个可以正常加载数据，在firfox可以三个都可以看到，不知道是为什么,请高手指教