DEDE集成百度搜索谷歌搜索站内全站搜索站内按栏目搜索等功能的搜索栏

<div class="search-bg">
  <div class="inner">
    <div class="search-form">
   <form role="search" method="get" id="searchform" name=bf onSubmit="bottomForm();return false;">
<script> 
function bottomForm(){
var $=document.bf.key.value; 
var $2=document.bf.sto.value; 
if(document.bf.sto[0].selected)window.open("https://www.baidu.com/s?wd="+"site%3Abnxb.com+"+$); 
if(document.bf.sto[1].selected)window.open("https://www.google.com.hk/search?hl=zh-CN&source=hp&q="+"site%3Awww.bnxb.com+"+$);
if(document.bf.sto[2].selected)window.open("{dede:global.cfg_basehost/}/app/search.php?kwtype=1&keyword="+$); 
else window.open("{dede:global.cfg_basehost/}/app/search.php?kwtype=1&keyword="+$+"&typeid="+$2);
return false} 
</script>
<input name="key" id="s" class="s" value="请输入关键词开始搜索!"onClick="this.value = '';" style="background-color: rgb(255, 255, 255); color: rgb(153, 153, 153); opacity: 0.8664601413572597; background-position: initial initial; background-repeat: initial initial; "onKeyPress="javascript:if(event.keyCode == 13){query(this.value);}" x-webkit-speech="" type="text">
<SELECT class="search-select" name="sto" id="search-option"> 
               <option value="0" class="search-select-option">百度搜索</option>
               <option value="1111" class="search-select-option">谷歌搜索</option>
   <option value="2222" selected='1' class="search-select-option">全站搜索</option>
{dede:channelartlist typeid='top' }
{dede:type} <option value='[field:id/]'>[field:typename/]</option>{/dede:type}
{dede:channel type='son' noself='yes'}
<option value='[field:id/]'>--[field:typename/]</option>
{/dede:channel}
{/dede:channelartlist}
</select>
<button id="searchsubmit" class="btn">搜索</button>
</form>
    </div>
    <div class="tagscloud"> <span>快捷搜索：</span> 　{dede:hotwords num='5'subday='30' maxlength='10'/}   </div>
  </div>
</div>

/*search-bg*/
.search-bg {background-color:#F5F5F5; width:100%; padding:20px 0; display:none;}
.search-bg.search-open {display:block;}
.search-bg .inner {overflow:hidden;}
.search-form,.search-form input {float:left;}
.search-form .s {background-color:#fff; border:1px solid #ddd; height:22px; line-height:22px; padding:5px; font-size:0.875em; width:500px; border-radius:3px;}
.search-form button {border:none; background-color:#1e82aa; color:#fff; height:32px; padding:0 10px; cursor:pointer; margin:1px 0px; border-radius:6px; font-size:1em;}
.search-form .search-select {background-color:#fff; border:1px solid #ddd; height:34px; line-height:34px; margin:1px 5px;}
.search-form .search-select-option {background-color:#E9EAEC;font-weight:bold}