discuz如何把登录框移到最顶的菜单栏，只显示一个登录和注册按钮？

请先看原来的登录位置：

我们希望把下面的登录框去掉并且移到上面的黑色菜单栏那里。我们要怎么做呢？

1、在黑色栏的登录那里按下面的代码写：

<li class="header_link"><a href="#" onclick="return lsSubmit();">登录</a></li>

注意看红色部份的javascript函数，它的作用是弹出登录框让你登录，所以，无论你在哪里放上这个函数，点击的时候都会弹出一个登录框让你登录的。

那么如何判断登录之后的内容显示呢，就是说登录后显示出是用户名什么的。

请先看下面的代码：

<!--{if $_G['uid']}-->        <li><strong class="vwmy{if $_G['setting']['connect']['allow'] && $_G[member][conisbind]} qq{/if}"><a href="home.php?mod=space&uid=$_G[uid]" target="_blank" title="{lang visit_my_space}">{$_G[member][username]}</a></strong>        </li>        <!--{if $_G['group']['allowinvisible']}-->        <li>        <span id="loginstatus"> <a id="loginstatusid" href="member.php?mod=switchstatus" title="{lang login_switch_invisible_mode}" onClick="ajaxget(this.href, 'loginstatus');return false;" class="xi2"></a> </span>         </li>        <!--{/if}-->         <li>        <span class="pipe">|</span><a href="member.php?mod=logging&action=logout&formhash={FORMHASH}">{lang logout}</a> </p>        </li>        <!--{else}-->         <li class="reg_ico"></li>        <li class="header_link"><a href="member.php?mod=register">注册</a></li>        <li class="login_ico"></li>        <li class="header_link"><a href="#" onclick="return lsSubmit();">登录</a></li>        <!--{/if}-->

看上面的代码我想大家会很明白其中的原理了，第一个if语句

<!--{if $_G['uid']}-->

判断用户是否登录，如果登录了，则显示出登录名，在线状态，和退出按钮

<!--{else}-->

显示出登录框内容

附discuz原来的代码：（原来下面的登录框）

<!----这里是登录框----->      <div class="hdc cl" style="">       <!--{eval $mnid = getcurrentnav();}-->      <h2 style="display:none;"><!--{if !isset($_G['setting']['navlogos'][$mnid])}--><a href="./" title="$_G['setting']['bbname']">{$_G['style']['boardlogo']}</a><!--{else}-->$_G['setting']['navlogos'][$mnid]<!--{/if}--></h2>            <!--{if $_G['uid']}-->      <div id="um">        <div class="avt y"><a href="home.php?mod=space&uid=$_G[uid]"><!--{avatar($_G[uid],small)}--></a></div>        <p> <strong class="vwmy{if $_G['setting']['connect']['allow'] && $_G[member][conisbind]} qq{/if}"><a href="home.php?mod=space&uid=$_G[uid]" target="_blank" title="{lang visit_my_space}">{$_G[member][username]}</a></strong>           <!--{if $_G['group']['allowinvisible']}-->           <span id="loginstatus"> <a id="loginstatusid" href="member.php?mod=switchstatus" title="{lang login_switch_invisible_mode}" onClick="ajaxget(this.href, 'loginstatus');return false;" class="xi2"></a> </span>           <!--{/if}-->           <!--{hook/global_usernav_extra1}-->           <span class="pipe">|</span><!--{hook/global_usernav_extra4}--><a href="home.php?mod=spacecp">{lang setup}</a> <span class="pipe">|</span><a href="home.php?mod=space&do=pm" id="pm_ntc"{if $_G[member][newpm]} class="new"{/if}>{lang pm_center}</a> <span class="pipe">|</span><a href="home.php?mod=space&do=notice" id="myprompt"{if $_G[member][newprompt]} class="new"{/if}>{lang remind}<!--{if $_G[member][newprompt]}-->($_G[member][newprompt])<!--{/if}--></a><span id="myprompt_check"></span>           <!--{if $_G['setting']['taskon'] && !empty($_G['cookie']['taskdoing_'.$_G['uid']])}--><span class="pipe">|</span><a href="home.php?mod=task&item=doing" id="task_ntc" class="new">{lang task_doing}</a><!--{/if}-->           <!--{if ($_G['group']['allowmanagearticle'] || $_G['group']['allowpostarticle'] || $_G['group']['allowdiy'] || getstatus($_G['member']['allowadmincp'], 4) || getstatus($_G['member']['allowadmincp'], 6) || getstatus($_G['member']['allowadmincp'], 2) || getstatus($_G['member']['allowadmincp'], 3))}-->           <span class="pipe">|</span><a href="portal.php?mod=portalcp"><!--{if $_G['setting']['portalstatus'] }-->{lang portal_manage}<!--{else}-->{lang portal_block_manage}<!--{/if}--></a>           <!--{/if}-->           <!--{if $_G['uid'] && $_G['group']['radminid'] > 1}-->           <span class="pipe">|</span><a href="forum.php?mod=modcp&fid=$_G[fid]" target="_blank">{lang forum_manager}</a>           <!--{/if}-->           <!--{if $_G['uid'] && $_G['adminid'] == 1 && $_G['setting']['cloud_status']}-->           <span class="pipe">|</span><a href="admin.php?frames=yes&action=cloud&operation=apphttp://192.168.8.222/my2400/list" target="_blank">{lang cloudcp}</a>           <!--{/if}-->           <!--{if $_G['uid'] && getstatus($_G['member']['allowadmincp'], 1)}-->           <span class="pipe">|</span><a href="admin.php" target="_blank">{lang admincp}</a>           <!--{/if}-->           <!--{hook/global_usernav_extra2}-->           <span class="pipe">|</span><a href="member.php?mod=logging&action=logout&formhash={FORMHASH}">{lang logout}</a> </p>        <p>           <!--{hook/global_usernav_extra3}-->           <!--{eval $upgradecredit = $_G['uid'] && $_G['group']['grouptype'] == 'member' && $_G['group']['groupcreditslower'] != 999999999 ? $_G['group']['groupcreditslower'] - $_G['member']['credits'] : false;}-->           <a href="home.php?mod=spacecp&ac=credit&showcredit=1" id="extcreditmenu"{if !$_G[setting][bbclosed]} onMouseOver="delayShow(this, showCreditmenu);" class="showmenu"{/if}>{lang credits}: $_G[member][credits]</a> <span class="pipe">|</span>{lang usergroup}: <a href="home.php?mod=spacecp&ac=usergroup"{if $upgradecredit !== 'false'} id="g_upmine" class="xi2" onMouseOver="delayShow(this, showUpgradeinfo)"{/if}>$_G[group][grouptitle]</a> </p>      </div>      <!--{elseif !empty($_G['cookie']['loginuser'])}-->      <p> <strong><a id="loginuser" class="noborder"><!--{echo dhtmlspecialchars($_G['cookie']['loginuser'])}--></a></strong> <span class="pipe">|</span><a href="member.php?mod=logging&action=login" onClick="showWindow('login', this.href)">{lang activation}</a> <span class="pipe">|</span><a href="member.php?mod=logging&action=logout&formhash={FORMHASH}">{lang logout}</a> </p>      <!--{elseif !$_G[connectguest]}-->       <!--{template member/login_simple}--> <!--这一句是整个登录框原素-->      <!--{else}-->      <div id="um">        <div class="avt y"><!--{avatar(0,small)}--></div>        <p> <strong class="vwmy qq">{$_G[member][username]}</strong>           <!--{hook/global_usernav_extra1}-->           <span class="pipe">|</span><a href="member.php?mod=logging&action=logout&formhash={FORMHASH}">{lang logout}</a> </p>        <p> <a href="home.php?mod=spacecp&ac=credit&showcredit=1">{lang credits}: 0</a> <span class="pipe">|</span>{lang usergroup}: $_G[group][grouptitle] </p>      </div>      <!--{/if}-->     </div>    <!--登录框结束---->