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-->Ext.onReady(function(){
    var window = new Ext.Window({
        layout: "column",
        title: "Hello World",
        id: "helloWorldWindow",
        bodyStyle: "padding:10px;",
        width: 550,
        height: 300,
        x: 100,
        y: 100,
        items: [
            {    
                columnWidth: .6,
                baseCls: "x-plain",
                frame: true,
                layout: "form",
                bodyStyle: "padding:5px;",
                items: [
                    {xtype: "textfield", fieldLabel: "UserName"},
                    {xtype: "textfield", fieldLabel: "Age"}    
                ]
            },
            {    
                columnWidth: .3,
                baseCls: "x-plain",
                bodyStyle: "padding:5px;",
                items: [
                    {xtype: "