Link Widget question

Instead of open new browser window all the time. Is there anyway to use the same child window if one already opened and stay focus when user click on ESRI link for example?
I change this on both init & checkIfLinkWidget function but can't figure anyway to make existing child window to stay focus without opening a new browser window. Any ideas to do this?

navigateToURL(new URLRequest(linkURL),"CHILD");

Thanks.