var renderer, map, mapInitWidth = 651, mapInitHeight = 571, mouse, onMouseAreaName, areaNum = area.length; window.addEventListener( 'load', init, false ); function init(){ // Canvas map = document.createElement( 'canvas' ); if( mapInitHeight / mapInitWidth < window.innerHeight / window.innerWidth ){ map.width = window.innerWidth; map.height = mapInitHeight * window.innerWidth / mapInitWidth; }else