根据radio判断下拉框是否禁用

<script type="text/javascript" language="javascript">

// function drop_Visible(boj)
// {
// var drop = document.getElementById("CarOilInfo1_drop_jykh");
// if(boj=="open")
// {
// drop.disabled = "";
// }
// else
// {
// drop.value= "-1";
// drop.disabled = "none";
// }
// }
</script>

引用

<td class="bettery_bt">
支付方式：
</td>
<td class="bettery_bt" style="text-align: left">
<asp:RadioButton ID="rbk_jyk" runat="server" Text="加油卡" GroupName="fs" onclick="drop_Visible('open');"
Checked="true" />
<asp:RadioButton ID="rbk_xj" runat="server" Text="现金" GroupName="fs" onclick="drop_Visible('close');" />

<asp:DropDownList ID="drop_jykh" runat="server" Width="210px">
</asp:DropDownList>
</td>