ExtJS Project - With C# - Chapter 1

Ext.onReady(function() {
    Ext.tip.QuickTipManager.init();
    Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));
    var viewport = Ext.create('Ext.Viewport', {
        layout: 'border',
        id: 'smartworksView',
        items: [cardPanelContent]
    });
    var menu = getQueryParam('menu');
    if (menu == null || menu == "") {
        menu = "AL";
    }
    changeContentView(menu);
});

function getQueryParam(name) {
    var regex = RegExp('[?&]' + name + '=([^&]*)');

    var scriptEls = document.getElementsByTagName('script'),
        path = scriptEls[scriptEls.length - 1].src,
        i = 3

    while (i--) {
        path = path.substring(0, path.lastIndexOf('/'));
    }
       
    var match = regex.exec(location.search) || regex.exec(path);
    return match && decodeURIComponent(match[1]);
}

var cardPanelContent = new Ext.Panel({
    xtype: 'panel',
    region: 'center',
    id: 'cardPanelContent',
    header: false,
    layout: 'card',
    activeItem: 0,
    items: [
                ImageMngView, userDocMainPanel, PrivateDocMainPanel
           ]
});