var world       = 'first';
var zoom        = 8;
var fgColour    = '00ff00';
var bgColour    = 'ffc0cb';
var brushSize   = 8;
var effect      = 'Interpolate';
var tileWidth   = 64;
var tileHeight  = 48;
var viewWidth   = 512;
var viewHeight  = 384;
var minCursorSize  = 4;
var defaultCursor  = 'url(img/1pixblack.png), auto';
var canvasWidth = tileWidth * 8;
var canvasHeight = tileHeight * 8;

var cacheBorder = 1
var mapX = 0;
var mapY = 0;
var mapSubX = 0
var mapSubY = 0
var mapX2 = 0
var mapY2 = 0
var rowMax = 0
var colMax = 0
var nCols = 0
var nRows = 0
var nImgs = 0
var mapWidth = 0
var mapHeight = 0

var name = ''