我这个代码怎么运行不了
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>当前系统时间</title>
<link rel="stylesheet" href="style.css" />
<script language="javascript" type="text/javascript">
window.onload = function()
{
showTime();
}
function checkTime(i)
{ //补位处理
if(i<10){i="0"+i;}
return i;
}
function showTime()
{
var now=new Date();
var year=now.getFullYear（）;
var month=now.getMonth（）+1;
var day=now.getDate（）;
var h=now.getHours（）;
var m=now.getMinutes（）;
var s=now.getSeconds（）;
m=checkTime(m);
s=checkTime(s);
var weekday=new Array(7);
weekday[0]="星期日";
weekday[1]="星期一";
weekday[2]="星期二";
weekday[3]="星期三";
weekday[4]="星期四";
weekday[5]="星期五";
weekday[6]="星期六";
var xq=now.getDay（);
document.getElementById("show").innerHTML=" "+year+"年"+month+"月"+day+"日 "+ weekday[xq]+h+":"+m+":"+s;
t=setTimeout('showTime()',500);
}
</script>
</head>
<body>
<div class="content1">
<div id="show">显示时间的位置</div>
</div>
</body>
</html>
