<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script src="jquery.js"></script>
<script>
function check(){
var $mobile = $("#shouji");
if($mobile.attr("value") == ""){
var oht = "<font>内容为空</font>";
$mobile.append(oht);
}
return true;
}
</script>
</head>
<body>
手机号码验证:<input id="shouji" type="text" value="" onblur="return check()"/><br/>
</body>
</html>
ruibin
走向流沙