Load Dynamic Loader in ClientSide

Hi I m trying to load my Dynamic Loader in ClientSide.. Please help me to load it in my page containing Panel.

Code:

---

var i = this.getSelectionModel().getSelection()[0].data.hrefTarget;
    if (i == '') {
        return false;
    }
    dynamicPanel = new Ext.Component({
        loader: {
            url: i,
            renderer: 'html',
            autoLoad: true,
            scripts: true
        }
    });
Ext.getCmp('panel').add(dynamicPanel);

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Variable i contains URL of the page to be redirected and loaded in the loader.
This results the page to load two times.. How can I Avoid Loading a page two times?? Quick help will be appreciated..