function getBaseUrlFromSourceWindow() {

	var theCompleteUrl = window.opener.location.href;
	var thePosition = theCompleteUrl.indexOf("?");
        if (thePosition > 0) {
          var theBaseUrl = theCompleteUrl.substring(0,thePosition);
	} else {
          var theBaseUrl = theCompleteUrl;
        }     
        return theBaseUrl

}