可输入的下拉列表

<div style="position:absolute;margin-top:-12px;">
<table cellspacing="0" cellpadding="0" width="100%" border="0"><tr><td align="left">

<span style="position:absolute;border:1pt solid #c1c1c1;overflow:hidden;108px;height:19px;clip:rect(-1px 110px 110px 90px);">
<select runat="server" name="aabb" id="aabb" style="110px;height:20px;margin:-2px;" onchange="javascript:document.getElementById('ccdd').value=document.getElementById('aabb').options[document.getElementById('aabb').selectedIndex].value;">
<option value="" style="color:#c2c2c2;">---请选择---</option>
<option value="闲人书库">闲人书库</option>
<option value="闲人BLOG">闲人BLOG</option>
<option value="ddddd">闲人设计</option>
<option value="闲人软件">闲人软件</option>
</select>
</span>
<span style="position:absolute;border-top:1pt solid #c1c1c1;border-left:1pt solid #c1c1c1;border-bottom:1pt solid #c1c1c1;90px;height:19px;">
<input runat="server" type="text" name="ccdd" id="ccdd" value="" style="90px;height:15px;border:0pt;" />
</span>

</td></tr></table>
</div>