function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate(thisform)
{
  with (thisform)
  {
  if (validate_required(username,"登录用户名不能为空")==false)
	{username.focus();return false;}
  
  if (validate_required(password,"密码不能为空")==false)
	{password.focus();return false;}
  }
}
function initTopBarBox(){
	var html='';
	
		
		html+='<!-- 未登录状态 -->';
		html+='<div id="login_out_box">';
		html+='  <div class="bar_one">';
		html+='    <form id="login_form" method="post" target="_self" action="/members/passport.php?act=topbar_post&iframe=0" onSubmit="return validate(this)">';
		html+='	     <input type="hidden" name="redirect" value="http%3A%2F%2Fwww.wenxuecity.com%2Fnews%2F2015%2F03%2F03%2F4074192.html">';
		
				
		html+='      <span class="user"> 用户名：<input class="box" type="text" name="username"> </span>';
		html+='      <span>密 码：<input class="box" type="password" name="password"> </span>';
		html+='		 <span>保持登录<input name="autologin" type="checkbox" id="autologin" value="1"></span>';
		html+='      <input class="btn" type="submit" name="login" value="登录">';
		html+='      <input class="btn" type="button" value="注册" onclick="self.location=\'/members/passport.php?act=register\'">';
		html+='      <span>[<a href="/members/passport.php?act=forgotpwd">忘记密码</a>]</span>';
		html+='    </form>';
		html+='  </div>';
		html+='</div>';
		
	document.write(html);
		
	}

initTopBarBox();