抱歉，运行中出现了标签解析错误， 标签是：

<#if @isFamily(${RequestID},${MAINNAV.CMSID})> <dd id=mainbav${MAINNAV.index1} cms:id="${CMSID}"><a href="${URL}" onmouseover="showsubmenu(${MAINNAV.index1})" target="${ct_target}" id="current">${ct_title}</a> <table border="0" cellspacing="0" cellpadding="0" class="subnav" id=submenu${MAINNAV.index1} style="display:none;" > <tr><td height="4"></td></tr> <tr> <td><#CmsList CMSID=MAINNAV.CMSID METHOD="SUB_NODE" SUBTYPE="CHANNEL"><a href="${URL}" target="${ct_target}" cms:id="${CMSID}">${ct_short_title}</a></#CmsList></td> </tr> <tr><td height="8"></td></tr> </table> </dd> <#else/> <dd id=mainbav${MAINNAV.index1} cms:id="${CMSID}"><a href="${URL}" onmouseover="showsubmenu(${MAINNAV.index1})" target="${ct_target}" >${ct_title}</a> <table border="0" cellspacing="0" cellpadding="0" class="subnav" id=submenu${MAINNAV.index1} style="display:none;" > <tr><td height="8"></td></tr> <tr> <td><#CmsList CMSID=MAINNAV.CMSID METHOD="SUB_NODE" SUBTYPE="CHANNEL"><a href="${URL}" target="${ct_target}" cms:id="${CMSID}">${ct_short_title}</a></#CmsList></td> </tr> <tr><td height="4"></td></tr> </table> </dd> </#if>

错误信息：

IF标签解析错误，标签为<#if @isFamily(${RequestID},${MAINNAV.CMSID})>