<!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>必须选中条约才能继续操作</title>
<script src="jquery-1.7.js" type="text/javascript"></script>
</head>
<body>
<input type="checkbox" id="xuanzhong"/><label for="xuanzhong">我已经同意上述条约.</label><br />
<input type="button" id="tijiao" value="提交" /><input type="reset" value="取消" />
<script type="text/javascript">
var $xz=$("#xuanzhong");
var $tijiao=$("#tijiao");
$xz.click(function (){
if($xz.is(":checked")){
alert("感谢支持，你可以继续操作!")
}
});
</script>
</body>
</html>