/* The OpenPopupWindow function opens a secondary browser window to display additional information, displaying the URL file and the windowfeatures passed to the function*/



var popupWindow = null;



function OpenPopupWindow(URL, windowFeatures)

{

    popupWindow = window.open(URL,"PopupWindow",windowFeatures);

    popupWindow.focus();     

}



function ClosePopupWindow()

{

    if (popupWindow != null)

    {

	if (!popupWindow.closed)

	{

	    popupWindow.close();

	}

    }

}