document.write('<script language="javascript" id="src_field_list"></script>');document.write('<select id="search_channel_list" style="width:80px;PADDING-RIGHT:10px" onchange=\' SetSearchField("",this)\'>');document.write('<option value="0">请选择频道</option>');document.write('<option value="8">课程分类</option>');document.write('<option value="9">新闻中心</option>');document.write('<option value="10">网上书店</option>');document.write('<option value="1">考试学习</option>');document.write('<option value="11">网络课程</option>');document.write('</select>');document.write('<select id="search_field_list" style="width:80px;PADDING-RIGHT:10px"><option value="0">选择搜索字段</option></select>');document.write('<input type="text" maxlength="50" id="search_txt_keyword" />');document.write('<input type="button" style="width:60px;height:20px" value=" 搜 索 " onclick=\'GoSearch("")\'/>');