var lastPopUpWindow = null;

function pop(sCase) {
// close the last pop-up.
	try {
		lastPopUpWindow.close();
	}catch(e){
	}

	switch(sCase) {
		case "register":
			lastPopUpWindow = launchPopUpWindow('http://72.51.44.62/focusfeatures/rogueRegForm.php', 'register', 344, 436);
			break;
		case "gallery":
			lastPopUpWindow = launchPopUpWindow('gallery.html', 'gallery', 960, 447);
			break;
		case "largeview":
			launchPopUpWindow('gallery_largeview.html?photo=' + pop.arguments[1], 'large_view', 450, 593, 5, true);
			break;
	}
}