/**
* Показ диалогового окна   
*/
function showPopup(url, width, height, scrollbar) {
	if (url == '') return false;
	if (scrollbar == null) scroll = 'no';
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	var styleStr = 'toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbar='+scrollbar+',resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	var msgWindow = window.open(url,"msgWindow", styleStr);
	msgWindow.focus();
}

// показ сообщения
function showMessage(message, duration) {
	if (message == '') return;
	var messageWindow = document.getElementById('message');
	if (messageWindow != null) {
		messageWindow.innerHTML     = message;
		messageWindow.style.top     = 5;
		messageWindow.style.left    = (document.body.clientWidth - message.length*7) / 2;
		messageWindow.style.display = 'inline';

		if (duration > 0) {
			setTimeout(hideMessage, duration*1000);
		}
	}
}


function hideMessage() {
	var messageWindow = document.getElementById('message');
	if (messageWindow != null) {
		messageWindow.style.display = 'none';
	}
}

// запрос на удаление объекта
function confirmDelete(url, message) {
	if (confirm(message)) {
		document.location = url;
	} else {
		return false;
	}
}