msgWin = window.msgWin;
/* popup pro obrazky a galerie */
function popup(alink, type) { 
	var retValue = false;
	switch(type) {
		case 1: // img_from_link
			path = "./popup_image.php?path=" + alink.href + "&title=" + alink.getAttribute("TITLE");
			break;
		case 2: // gal_from_link
			path = alink.href + "&title=" + alink.getAttribute("TITLE");
			break;
		case 3: // empty win from link
			path = alink.href;
			break;
	}
	
	if (msgWin != null && !msgWin.closed) { 
		msgWin.location.href = path;
		msgWin.focus();
	} else {
		msgWin = window.open(path, "_gallery","height=150,menubar=0,personalbar=0,resizable=1,scrollbars=0,toolbar=0,width=150,top=100,left=100,status=0");
		if (msgWin == null || typeof(msgWin) == "undefined") {
			retValue = true; 
			}
		else { 
			alink.target = "_gallery";
			msgWin.focus(); 
		} 
	} 
	return retValue; 
}