单击单选按钮时,我有如下代码是的,如果不是,则必须启用文本框,否则必须禁用它。请有人帮助我。谢谢
<div class="label_left">
<label>Does the tourism office operate on a biennial budget? : (Y/N)</label>
</div>
<div class="text_right">
<br>
<br>
<input type="radio" id="high" name="high" />
<label>Y</label>
<input type="radio" id="high" name="high" />
<label>N</label>
<br />
<br />
<br />
</div>
<div class="label_left">
<label>If YES,please indicate when the current biennial budget began: (mm/dd/yy)</label>
</div>
<div class="text_right">
<br>
<br>
<input type="text" name="date_biennial_budget" id="date_biennial_budget" value="" size="30" />
<br />
<br />
<br />
</div>