1.在page_header.lbi对应的位置(你想显示导航的位置)插入

  (注意下面的”themes/模板名称/util.php”中的”模板名称”改成你模板文件夹的名称)

<?php
    require_once(“themes/模板名称/util.php”);
?>
<div> 
             <p {if $navigator_list.config.index eq 1} {/if}><a href=”../index.php”>{$lang.home}</a></p>  
                <ul>                  
                  <!– {foreach name=nav_middle_list from=$navigator_list.middle item=nav} –>
                   <li onMouseOver=”sw_nav(this,1);” onMouseOut=”sw_nav(this,0);” {if $nav.active eq 1}{/if}>
                   <a href=”{$nav.url}” {if $nav.opennew eq 1}target=”_blank” {/if}>{$nav.name}</a>
                  <?php 
                                  $subcates = get_subcate_byurl($GLOBALS[‘smarty’]->_var[‘nav’][‘url’]);
                             if($subcates!=false)
                        {
                                if(count($subcates)>0)
                            {
                                    echo “<div class=’sub_nav’>”;                                
                                if($subcates)
                                {
                                foreach($subcates as $cate)
                                {
                                        echo “<a href='”.$cate[‘url’].”‘ class=’level_1’>”.$cate[‘name’].”</a>”;                                   
                                }
                                }                                
                                echo “</div><iframe frameborder=’0′ scrolling=’no’ class=’nomask’></iframe>”;
                            }
                        }
                             ?>
                   </li>
                 <!– {/foreach} –>
            </ul>
      <script type=”text/javascript”>
      //初始化主菜单
                function sw_nav(obj,tag)
                { 
                        var subdivs = obj.getElementsByTagName(“DIV”);
                        var ifs = obj.getElementsByTagName(“IFRAME”);
                        
                        if(subdivs.length>0)
                        { 
                                if(tag==1)
                                {
                                        subdivs[0].style.display = “block”;
                                        ifs[0].style.display = “block”;
                                }
                                else
                                {
                                        subdivs[0].style.display = “none”;        
                                        ifs[0].style.display = “none”;
                                }                               
                        }
                }
      </script> 
</div>

2.在CSS文件中插入
 

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.header-menu p{ float:left;padding:1px 12px 1px 0;margin-top:-2px;}
.header-menu  ul li{float:left;padding:1px 12px 1px 12px;margin-top:-2px;}
.header-menu ul li a,.header-menu p a{color: #333;display:block;}
.header-menu ul li a:hover,.header-menu p a:hover{color:#888;}
.header-menu ul li.curs{background:#999;}
.header-menu ul li.curs a{color:#fff;}
 
.sub_nav{ background:#999;width:110px; position:absolute; z-index:5003; display:none;margin-left:-12px;}
.nomask{ background:#fff; width:110px; height:50px; position:absolute; z-index:5002;display:none;margin-left:-12px;}
.sub_nav a.level_1{ display:block;color:#fff;padding:6px 6px 6px 13px;font:11px Tahoma,Verdana,PMingLiU,Arial;border-bottom:1px dotted #D1D1D1;*border-bottom:1px dotted #D1D1D1 !important;*border-bottom:1px solid #A8A8A8;}
.sub_nav a.level_1:hover{color:#fff;background:#55B46C;text-decoration:none;}

3.把以下代码编辑成(util.php)解压出来拷贝到模板目录下
 

 <?php
/**
 * 通过传入参数的url判断是否为目录分类,从而获取子菜单 
 * @param string $url
 */
function get_subcate_byurl($url)
{
    $rs = strpos($url,”category”);
    if($rs!==false)
    {
        preg_match(“/d+/i”,$url,$matches);
        $cid = $matches[0];
        $cat_arr = array();
        $sql = “select * from “.$GLOBALS[‘ecs’]->table(‘category’).” where parent_id=”.$cid.” and is_show=1″;
        $res = $GLOBALS[‘db’]->getAll($sql);
        
        foreach($res as $idx => $row)
        {
            $cat_arr[$idx][‘id’]   = $row[‘cat_id’];
            $cat_arr[$idx][‘name’] = $row[‘cat_name’];
            $cat_arr[$idx][‘url’]  = build_uri(‘category’, array(‘cid’ => $row[‘cat_id’]), $row[‘cat_name’]);
            $cat_arr[$idx][‘children’] = get_clild_list($row[‘cat_id’]);
        } 
        return $cat_arr;
    }
    else 
    {
        return false;
    }
}
 
function get_clild_list($pid)
{
   //开始获取子分类
    $sql_sub = “select * from “.$GLOBALS[‘ecs’]->table(‘category’).” where parent_id=”.$pid.” and is_show=1″; 
    $subres = $GLOBALS[‘db’]->getAll($sql_sub);
    if($subres)
    {
        foreach ($subres as $sidx => $subrow)
        {
            $children[$sidx][‘id’]=$subrow[‘cat_id’];
            $children[$sidx][‘name’]=$subrow[‘cat_name’];
            $children[$sidx][‘url’]=build_uri(‘category’, array(‘cid’ => $subrow[‘cat_id’]), $subrow[‘cat_name’]);
        }
    }
    else 
    {
        $children = null;
    }        
    return $children;
}
?>