<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>jb51</title>
<link href="css/index.css" rel="stylesheet" type="text/css">
<script src="js/jquery-1.4.2.min.js" type="text/javascript"></script>
</head>
<body>
<div class="warp">
<canvas id="jb51"></canvas>
</div>
<script>
var canvas_jb51=$("#jb51");
alert(canvas_jb51);
alert(document.getElementById("jb51"));
var jb51_2d=canvas_jb51.getContext("2d");
var jb51_img=new Image();
jb51_img.src="images/Boston-III-48px.png";
jb51_2d.drawImage(jb51_img,0,0);
</script>
</body>
</html>