<form>
 <input name="textName1" type="text" id="textName1" />
 <input name="textName2" type="text" id="textName2" />
 ....(n个text)....
 <input type="radio" name="r1"value="测试1" checked>测试1<br>
 <input type="radio" name="r1"value="测试2" checked>测试2<br>
....(n对radio)....
 <input type="button" name="Submit" value="Submit"  onclick=save() />
</form>

function save() {
    var ar_text = [], ar_radio = [];
    var obj = document.getElementsByTagName('form')[0].getElementsByTagName('input');
    for (var i = 0; i < obj.length; i ++) {
        if (obj[i].type == 'text' && obj[i].value.length > 0) ar_text.push(obj[i].value);
        if (obj[i].type == 'radio' && obj[i].checked) ar_radio.push(obj[i].value);
    }
    alert(ar_text);
    alert(ar_radio);
    return [ar_text, ar_radio];
}