如果选择了单选按钮,如何禁用选择表单下拉菜单?
如果用户选择#no 单选按钮,我希望禁用#preference 表单,如果用户选择#yes 或#maybe,则再次启用它。
这是我的表单代码 -
<form name="xmas" id="xmas" action="send_mail.php" method="post">
<input type="radio" name="choice" value="Yes" id="yes"/><label for="yes">Yes - I would like to take up the offer</label>
<input type="radio" name="choice" value="No" id="no"/><label for="no">No - I'm not ready to order yet</label>
<input type="radio" name="choice" value="Maybe" id="maybe"/><label for="maybe">Maybe - I'm not sure, would you please give me a call</label><br />
<div class="secondlineform">
<input type="text" name="name" class="textfield" value="Name" onfocus="if(this.value=this.defaultValue){this.value=''}; return false;"/>
<input type="text" name="email" class="textfield" value="Email" onfocus="if(this.value=this.defaultValue){this.value=''}; return false;"/>
<input type="text" name="company" class="textfield" value="Company" onfocus="if(this.value=this.defaultValue){this.value=''}; return false;"/>
<select class="dropselect" name="preference" label="Preference" id="preference">
<option selected="selected" disabled="disabled" value="Preference">Preference</option>
<option value="Alcohol Package">Alcohol Package</option>
<option value="Gift Card Package">Gift Card Package</option>
</select>
<input type="submit" value="" name="submit" id="submit" class="submit"/>
</div>
</form>
这是我的脚本代码 -
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
var update_select = function () {
if ($('#no').is(':checked')) {
$('#preference').attr('disabled', "disabled");
}
else {
$("#preference").removeAttr("disabled");
}
};
$(update_select);
$('#no').change(update_select);
</script>
非常感谢任何答案!我研究这个问题已经很久了,我发现的所有解决方案似乎都不能解决我的问题。