有关IE6下拉框图层问题，一直困扰着大家，下面有个不错的方法大家可以尝试操作下

js需添加：   代码如下: $("#div_bksq").bgiframe();    jsp需添加：   代码如下: <script type="text/javascript" src="resources/js/plugins/jquery/jquery.bgiframe.min.js"></script>    jsp代码：   代码如下: <!-- 添加、申请以及修改布控页面开始 -->  <div class="gjcx_pop" style="display: none; background: white;height: 480px;margin-top:-240px;" id="div_bksq"><input type="text" style="display: none" id="txt_isViewOrUpdate"/>  <div class="gjcx_pop_tit" style="cursor: move;" id="div_bksq_tit">  <span><img src="resources/themes/default/images/vts/sourch_ico.gif" /><font class="sxcx_titText"><input type="text" id="txt_bt" style="border:0px;width:60px;font: normal bold 13px '宋体';color: #00517e;text-decoration: none;float:left;background: url('resources/themes/default/images/vts/alert_tit.jpg') repeat-x left top" /></font></span>  <img src="resources/themes/default/images/vts/alert_close.jpg" id="img_gb" style="cursor: pointer;" title="关闭"/>  </div>  <div class="qvyu" id="qyTree">  <div class="qvyu_n">