function openNewWindow(url, width, height, scrollbar, resize) {
	return window.open(url, 'editor', 'statusbar=0, scrollbars='+ scrollbar +', resizeable='+ resize +', width='+ width +', height='+ height);
}

function showSubMenu(id) {
	
	switch (id) {
		
		case 'sub-null':
			document.getElementById('sub-null').style.display        = 'block';
			document.getElementById('sub-details').style.display     = 'none';
			document.getElementById('sub-about').style.display       = 'none';
			document.getElementById('sub-reservation').style.display = 'none';
			break;
			
		case 'sub-details':
			document.getElementById('sub-null').style.display        = 'none';
			document.getElementById('sub-details').style.display     = 'block';
			document.getElementById('sub-about').style.display       = 'none';
			document.getElementById('sub-reservation').style.display = 'none';
			break;
			
		case 'sub-about':
			document.getElementById('sub-null').style.display        = 'none';
			document.getElementById('sub-details').style.display     = 'none';
			document.getElementById('sub-about').style.display       = 'block';
			document.getElementById('sub-reservation').style.display = 'none';
			break;
			
		case 'sub-reservation':
			document.getElementById('sub-null').style.display        = 'none';
			document.getElementById('sub-details').style.display     = 'none';
			document.getElementById('sub-about').style.display       = 'none';
			document.getElementById('sub-reservation').style.display = 'block';
			break;
			
	}
	
}