單擊按鈕后，我可以在腳本中獲取所選單選按鈕的值嗎？

Question

我有一個jsp頁面，我在其中放置了幾個單選按鈕。

選擇單選按鈕並單擊提交按鈕后，它將調用javascript函數，該函數需要選擇的單選按鈕值才能對腳本進行一些操作。

誰能解決這個問題？

<td align="center"><input type="radio" name="radio" id="radio" value="value1"></td>
<td align="center"><input type="radio" name="radio" id="radio" value="value2"></td>
<td align="center"><input type="radio" name="radio" id="radio" value="value3"></td>

<td ><a onclick="Javascript:delete();"><span>Delete</span></a></td>

<script language="javascript" type="text/javascript">
function delete()
{
    <% String str= here i want that selected radio buttons value%>
}
</script>

Answer 1

<script language="javascript" type="text/javascript">
        function deleteme() {
            var values = document.getElementsByName('radio');

            for ( var i = 0, length = values.length; i < length; i++) {
                if (values[i].checked) {
                    // do whatever you want with the checked radio
                    alert(values[i].value);
                    // only one radio can be logically checked, don't check the rest
                    break;
                }
            }
        }
    </script>

    <td align="center"><input type="radio" name="radio" id="radio" value="value1">value1</td>
    <td align="center"><input type="radio" name="radio" id="radio" value="value2">value2</td>
    <td align="center"><input type="radio" name="radio" id="radio" value="value3">value3</td>

    <td><a onclick="deleteme();">Delete</a></td>