CRM Javascript - IFRAME URL İşlemleri

Aşağıdaki function da url varsa iframe atanır , url yoksa iframe gilenir.

function SetIFRAMEURL(visible, url, iframename, tabname) {
    if (visible) {
        if (url != null && url != "")
            Xrm.Page.getControl(iframename).setSrc(url);
    }
    else if (visible == false) {
        Xrm.Page.ui.tabs.get(tabname).setVisible(false);
    }
}