<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html {width: 100%;height: 100%;margin:0;font-family:"微软雅黑";}
#allmap{width:100%;height:500px;}
p{margin-left:5px; font-size:14px;}
</style>
<title>缩放地图</title>
</head>
<body onkeydown="keyLogin()">
<input id="huiche" onclick="huiche()" />
</body>
</html>
<script type="text/javascript">
function huiche(){
alert("huiche");
}
function keyLogin(){
var theEvent = window.event || arguments.callee.caller.arguments[0]; //谷歌能识别event，火狐识别不了，所以增加了这一句，chrome浏览器可以直接支持event.keyCode
var code = theEvent.keyCode;
if(code == 13){
document.getElementById("huiche").click();
}
}
</script>
