[CODE]<script type="text/javascript">
function showinvestor(obj){
if(obj.options[obj.selectedIndex].text=='外资') document.getElementById("investorDiv").style.display="";
else document.getElementById("investorDiv").style.display='none';
}
</script>
企业名称:<input type="text" name="IndustryName" />
企业属性:<select name="attribute" onchange="showinvestor(this)">
<option value="001">中资</option>
<option value="002">外资</option>
</select>
<div style="display:none" id="investorDiv">投资方<input type="text" name="investor" /></div>[/CODE]