相关疑难解决方法(0)

我的JS程序遇到了一些奇怪的问题.我有这个工作正常但由于某种原因它不再工作.我只是想找到单选按钮的值(选择哪一个)并将其返回到变量.由于某种原因,它不断返回undefined.

这是我的代码:

function findSelection(field) {
    var test = 'document.theForm.' + field;
    var sizes = test;

    alert(sizes);
        for (i=0; i < sizes.length; i++) {
            if (sizes[i].checked==true) {
            alert(sizes[i].value + ' you got a value');     
            return sizes[i].value;
        }
    }
}

submitForm:

function submitForm() {

    var genderS =  findSelection("genderS");
    alert(genderS);
}

HTML:

<form action="#n" name="theForm">

    <label for="gender">Gender: </label>
    <input type="radio" name="genderS" value="1" checked> Male
    <input type="radio" name="genderS" value="0" > Female<br><br>
    <a href="javascript: submitForm()">Search</A>
</form>

我正在使用此代码获取当前所选单选按钮的值,但它不起作用.

var mailcopy = document.getElementById('mailCopy').value; 

如何使用Javascript获取当前选中的单选按钮值？

嗨,这是下面的代码,我尝试了很多东西,但我无法获得所选单选按钮的价值.你可以看到我需要为不同的情况获得该值.

  <div style="display: inline-block">
        <div>
                <a href="/Login/LogOut">Log Out</a><span> Welcome </span>YS User 1 noName        </div>
        <br />
        <br />
        <br />
        <br />
        <input type="button" onclick="submitCreate();" value="New Survey" /><br />
        <input type="button" onclick="submitEdit();" value="Edit Survey" /><br />
        <input type="button" onclick="submitDelete();" value="Delete Survey" /><br />
        <input type="button" onclick="submitPreview();" value="Preview Survey" />
    </div>
    <div style="display: inline-block">
<div>
    <table class="MyTable"><thead><tr class="columnHead"><th scope="col"></th><th scope="col"><a href="/User/Index?sort=UserID&amp;sortdir=ASC">CreatedBy</a></th><th scope="col"><a href="/User/Index?sort=CreatedDate&amp;sortdir=ASC">Created Date</a></th><th scope="col"><a href="/User/Index?sort=IsRunning&amp;sortdir=ASC">Is Running</a></th></tr></thead><tbody><tr><td> <input name="selected" id="1" 

      type="radio" value="1" /></td><td>1</td><td>12/12/2011 3:43:57 PM</td><td>False</td></tr><tr class="altRow"><td> <input name="selected" id="2" 

      type="radio" value="2" …