<h1>強調照片的某個區塊</h1>

<canvas id='mycan' /></canvas>
<div>
	<button onclick='dic()'>資傳系地圖</button>
	<button onclick='i2511()'>地板教室</button/>
	<button onclick='i3501()'>3501教室</button/>
	<button onclick='i3502()'>3502教室</button/>
</div>