Ext.onReady(function(){

var treemenu1 = new Ext.tree.TreePanel({
id: 'tree-panel',
//title: 'Sample Layouts',
region:'north',
split: false, //true,
height: 300,
minSize: 150,
autoScroll: false, //true,

// tree-specific configs:
rootVisible: false,
lines: false,

singleExpand: false, //true, //membuka tree tapi yang lain tertutup jika true
useArrows: true,

loader: new Ext.tree.TreeLoader({
dataUrl:'menu1.json'
}),

root: new Ext.tree.AsyncTreeNode()
});



treemenu1.on('click', function(n){

if (n=="[Node idmhs3]") {

Ext.getCmp('details-panel').load({url:'http://www.google.co.id',scripts:false}); // atau autoload{url:'dmhs.php',scripts:true, params:{something:else}});

} else if (n=="[Node idrua3]") {
Ext.MessageBox.alert ('Message',"ruangan");
}

});


var detailsPanel = {
id: 'details-panel',
title: 'Details',
region: 'center',
bodyStyle: 'padding-bottom:15px;background:#eee;',
autoScroll: true,
html: '<p class="details-info">When you select a layout from the tree, additional details will display here.</p>'
};




var viewport1 = new Ext.Viewport({
layout: "border",
defaults: {
bodyStyle: 'padding:5px;',
},

items: [{
region: "north",
html: 'North',
margins: '5 5 5 5'
},{
region: 'west',
split: true, //tebal antar column
collapsible: true,
collapseMode: 'mini',
title: 'Some Info',
width: 200,
minSize: 200,
html: 'West',
margins: '0 0 0 5', //margin antar column,


items : [treemenu1]



},{
region: 'center',


xtype: 'tabpanel', //tab kesamping
activeTab: 0,



title: 'Movie Descriptions',




autoWidth:false,
autoHeight:false,


defaults: {
border: false,
autoScroll: true,
},



items : [detailsPanel],

margins: '0 0 0 0',

},{
region: 'east',
split: true,
width: 200,
html: 'East',
xtype: 'tabpanel',
margins: '0 5 0 0',
items: [{
title: 'Movie Grid',
html: 'Center'
},{
title: 'Data Movie',
html: 'Center'
}]
},{
region: 'south',
html: 'South',
margins: '5 5 5 5'
}]
});


viewport1.render ('viewport1b');
})


please help me, i want to load another site like www.google.co.id, when i click menu (like sample feed viewer-i can not understand becase difficult),
my code at : load({url:'http://www.google.co.id',scripts:false})

but error : only loading message, when i click menu another site loading in another window

PLEASE HELP ME and THANKS BEFORE...(sorry my english is bad)