// Code to supplement entry of seating chart info on events
function updateSeatingPreview(seating_id) {
	if (seating_id=='newseatingchart') {
		document.getElementById('seating_upload').style.display = 'inline';
		document.getElementById('seatingChartPreview').innerHTML = '';
		return true;
	} else {
		document.getElementById('seating_upload').style.display = 'none';
	}
	var image = seatingInfo[seating_id];
	if (image=='') return false;
	document.getElementById('seatingChartPreview').innerHTML = '<a href="'+image+'" rel="lightbox" target="_blank"><img id="seatingChart" src="'+image+'" width="200" border="0" /></a>';
}

var deleteCanvasStuff; // = 0;
var originalCanvas = 0;

function updateSeatingPreviewFrontEnd(seating_id) {
	var image = seatingInfo[seating_id];
	if (image=='') return false;
	var map = seatingMap[seating_id];
	if (map!='') {
		/*document.getElementById('seatingMap').innerHTML = map;
		document.getElementById('seating_image').useMap = "#seatViewerMap";
		document.getElementById('seating_image').setAttribute('class','mapper icolorffffff iborder000000');
		setTimeout("addMapper()", 1); // call from a global scope*/
		document.location = 'seating?seating_id='+seating_id+'#seatingChartViewer';
		//if (originalCanvas==1) window.location.reload();
		document.getElementById('seating_msg').display = 'block';
	} else {
		document.getElementById('seatingMap').innerHTML = '';
		document.getElementById('seating_image').useMap = "";
		document.getElementById('seating_image').setAttribute('class','');
		document.getElementById('seating_msg').style.display = 'none';
		if (deleteCanvasStuff==1) {
			document.getElementById('seatViewer').removeChild(document.getElementById('seating_image_canvas'));
			document.getElementById('seatViewer').removeChild(document.getElementById('seating_image_image'));
			document.getElementById('seatViewer').removeChild(document.getElementById('seatViewerMap_blind'));
			document.getElementById('seating_image').setAttribute('style','');
			deleteCanvasStuff = 0;
			originalCanvas = 1;
		}
	}
	document.getElementById('seating_image').src = image;
}