var mapWindow;
function hasMap() {
	var m = 0
	if (parent) {
		if (parent.name=="mainMap") {
			if (parent.zoomToSelected) var m = 1;
		}
	} 
	if (m==0) {
		if ((mapWindow) && (!mapWindow.closed)) {
			if (mapWindow.name=="mainMap") {
				if (mapWindow.zoomToSelected) var m = 2;
			}
		}
	}
	return m;
}