i want to create dynamic window in desktop and maximize it by js but i don't no how to do that.

I try with param "isMaximize" = true but it's not working. Please help me.

 windows = desk.createWindow({
        id: WindowID,
        title: title,
        width: iWidth,
        height: iHeight,
        pageX: 10,
        pageY: 10,
        isMaximize: isMaximize,
        showInTaskbar: isShowInTaskbar,
        maximizable: true,
        minimizable: true,
        closeAction: 'close',
        tools: [{
            id: 'help',
            qtip: 'Get Help',
            handler: function (event, toolEl, panel) {
                var strScript = 'window.frames.' + panel.iframe.id;
                var objFrame = eval(strScript);
                if (typeof (objFrame.gotoHelp) != 'undefined')
                    objFrame.gotoHelp();
            }
        },
                 {
                     id: 'refresh',
                     qtip: 'Refresh',
                     handler: function (event, toolEl, panel) {
                         refreshWinDow(event, toolEl, panel);
                     }
                 }],
        listeners: {
            close: function () {
                this.destroy();
            },
            beforeclose: function () {
                BeforCloseWindow(this);
            },
            activate: function () {
                Activate(this.id);
            }

        },
        autoLoad: {
            url: url,
            mode: "iframe",
            showMask: true,
            maskMsg: "Loading...."
        }
    });