Javascript -- 表单
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<script type="text/javascript"> function check(form) { if(form.userId.value=='') { alert("请输入用户帐号!"); form.userId.focus(); return false; } if(form.password.value==''){ alert("请输入登录密码!"); form.password.focus(); return false; } return true; } </script> <form action="login.do?act=login" method="post" onsubmit="return check(this)"> 用户帐号 <input type=text name="userId" size="18" value="" > <br> 登录密码 <input type="password" name="password" size="19" value=""/> <input type=submit name="submit1" value="登陆"> </form>
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JS跳转页面参考代码:
第一种:
<script language="javascript" type="text/javascript">
window.location.href="login.jsp?backurl="+window.location.href;
</script>
第二种:
<script language="javascript">
alert("返回");
window.history.back(-1);
</script>
第三种:
<script language="javascript">
window.navigate("top.jsp");
</script>
第四种:
<script language="JavaScript">
self.location=’top.htm’;
</script>
第五种:
<script language="javascript">
alert("非法访问!");
top.location=’xx.jsp’;
</script>
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