在网上找到了一下一段代码,但是无法遍历到textarea,请问该怎样做才能遍历到textarea呢?我的分数不多,只有20分,希望好新人能帮一下忙。<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title> <script type="text/javascript">
function getFrmQryStr(frmID) {
var obj = eval("document." + frmID);
if (obj == null)
obj = document.getElementById(frmID);
if (obj == null) return "";
var i, queryString = "", and = "";
var item; // for each form's object
var itemValue; // store each form object's value
var frmtype = obj.nodeName.toUpperCase();
if (frmtype == "FORM") {
for (i = 0; i < obj.length; i++) {
item = obj.elements[i]; // get form's each object
if (item != null && item.name != undefined && item.name != '') {
if (item.type == 'select-one') {
itemValue = item.options[item.selectedIndex].value;
}
else if (item.type == 'checkbox' || item.type == 'radio') {
if (item.checked == false) {
continue;
}
itemValue = item.value;
}
else if (item.type == 'button' || item.type == 'submit' || item.type == 'reset' || item.type == 'image') {
continue;
}
else {
itemValue = item.value;
} itemValue = encodeURIComponent(itemValue);
queryString += and + item.name + '=' + itemValue;
and = "&";
}
}
}
else if (frmtype == "DIV") {
queryString = getFrmValues(obj);
}
return queryString;
} function getFrmValues(obj) {
var item = null;
var itemValue = null;
var str = "";
for (var i = 0; i < obj.childNodes.length; i++) {
item = obj.childNodes[i];
if (item == null || item == undefined) continue;
if (item.name != undefined && item.name != null && item.name != '') {
if (item.type == 'select-one') {
itemValue = item.options[item.selectedIndex].value;
}
else if (item.type == 'checkbox' || item.type == 'radio') {
if (item.checked == false) {
continue;
}
itemValue = item.value;
}
else if (item.type == 'button' || item.type == 'submit' || item.type == 'reset' || item.type == 'image') {
continue;
}
else {
itemValue = item.value;
}
itemValue = encodeURIComponent(itemValue);
if (str != "") str += "&";
str += item.name + '=' + itemValue;
}
if (item.childNodes.length > 0) {
var temp = getFrmValues(item);
if (temp != "") {
if (str != "") str += "&";
str += temp;
}
}
}
return str;
} function getdata() {
var str = getFrmQryStr("div");
alert(str);
}
</script></head>
<body>
<div>
<form id="frm" name="frm" action="" method="post">
<div id="div">
<input type="text" id="txt1" name="txt1" value="1" />
<div>
<input type="text" id="txt2" name="txt2" value="2" />
<select id="sel" name="sel" multiple size="1">
<option value="China" selected="">China</option>
<option selected>USA</option>
</select>
<input type="hidden" id="Text1" name="txt3" value="hidden" />
<input type="checkbox" id="chk1" name="chk" value="chk1" checked="checked" />
<input type="checkbox" id="chk2" name="chk" value="chk2" checked="checked" />
<input type="radio" id="rad1" name="rad" value="1111" />
<input type="radio" id="Radio1" name="rad" value="1222" />
<input type="radio" id="Radio2" name="rad" value="13333" checked="checked" />
<span>
<input type="text" id="txt3" name="txt3" value="3" /></span>
</div>
</div>
<input type="text" id="txt4" name="txt4" value="4" />
<p><textarea rows="4" name="S1" cols="57">sdfsdfds</textarea></p>
</form>
<input type="text" id="txt5" name="txt5" value="5" />
<br />
<button onclick="getdata()">
Submit</button>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title> <script type="text/javascript">
function getFrmQryStr(frmID) {
var obj = eval("document." + frmID);
if (obj == null)
obj = document.getElementById(frmID);
if (obj == null) return "";
var i, queryString = "", and = "";
var item; // for each form's object
var itemValue; // store each form object's value
var frmtype = obj.nodeName.toUpperCase();
if (frmtype == "FORM") {
for (i = 0; i < obj.length; i++) {
item = obj.elements[i]; // get form's each object
if (item != null && item.name != undefined && item.name != '') {
if (item.type == 'select-one') {
itemValue = item.options[item.selectedIndex].value;
}
else if (item.type == 'checkbox' || item.type == 'radio') {
if (item.checked == false) {
continue;
}
itemValue = item.value;
}
else if (item.type == 'button' || item.type == 'submit' || item.type == 'reset' || item.type == 'image') {
continue;
}
else {
itemValue = item.value;
} itemValue = encodeURIComponent(itemValue);
queryString += and + item.name + '=' + itemValue;
and = "&";
}
}
}
else if (frmtype == "DIV") {
queryString = getFrmValues(obj);
}
return queryString;
} function getFrmValues(obj) {
var item = null;
var itemValue = null;
var str = "";
for (var i = 0; i < obj.childNodes.length; i++) {
item = obj.childNodes[i];
if (item == null || item == undefined) continue;
if (item.name != undefined && item.name != null && item.name != '') {
if (item.type == 'select-one') {
itemValue = item.options[item.selectedIndex].value;
}
else if (item.type == 'checkbox' || item.type == 'radio') {
if (item.checked == false) {
continue;
}
itemValue = item.value;
}
else if (item.type == 'button' || item.type == 'submit' || item.type == 'reset' || item.type == 'image') {
continue;
}
else {
itemValue = item.value;
}
itemValue = encodeURIComponent(itemValue);
if (str != "") str += "&";
str += item.name + '=' + itemValue;
}
if (item.childNodes.length > 0) {
var temp = getFrmValues(item);
if (temp != "") {
if (str != "") str += "&";
str += temp;
}
}
}
return str;
} function getdata() {
var str = getFrmQryStr("div");
alert(str);
}
</script></head>
<body>
<div>
<form id="frm" name="frm" action="" method="post">
<div id="div">
<input type="text" id="txt1" name="txt1" value="1" />
<div>
<input type="text" id="txt2" name="txt2" value="2" />
<select id="sel" name="sel" multiple size="1">
<option value="China" selected="">China</option>
<option selected>USA</option>
</select>
<input type="hidden" id="Text1" name="txt3" value="hidden" />
<input type="checkbox" id="chk1" name="chk" value="chk1" checked="checked" />
<input type="checkbox" id="chk2" name="chk" value="chk2" checked="checked" />
<input type="radio" id="rad1" name="rad" value="1111" />
<input type="radio" id="Radio1" name="rad" value="1222" />
<input type="radio" id="Radio2" name="rad" value="13333" checked="checked" />
<span>
<input type="text" id="txt3" name="txt3" value="3" /></span>
</div>
</div>
<input type="text" id="txt4" name="txt4" value="4" />
<p><textarea rows="4" name="S1" cols="57">sdfsdfds</textarea></p>
</form>
<input type="text" id="txt5" name="txt5" value="5" />
<br />
<button onclick="getdata()">
Submit</button>
</div>
</body>
</html>
解决方案 »
- js限制上传文件类型和大小
- 从主页面打开一个子页面,在子页面实现查询后,在查询结果中,单击一项,能把值传给主页面
- 小问题,DIV的》》》》》》
- 如果按时间流来执行一些任务呢?谢谢
- 帮忙看一段代码(不长)
- 请教,用 window.open()怎么把打开的窗口定位到屏幕的中间?
- [请教]text框的事件问题。
- 怎么样让层显示在<iframe>标签上?????
- 请问怎样设置一个网页中ActiveX的属性,条件是在ActiveX运行之前,请问有什么事件吗?
- js里面跨域获取iframe中的值
- 求教:如何使用JS自动设置meta标签的keyword,content-----------------------------------------标题要长
- js数组遍历输出问题~~
<body>
<form id="aa" method=post action="">
<input type="text" name="text">
<select name="select">
<option value="" selected>aaaaaaa
<option value="">bbbbbbbb
</select>
<textarea name="textarea" rows="" cols=""></textarea>
<input type="checkbox" name="checkbox">
<input type="checkbox" name="checkbox">
</form>
</body>
<script language="JavaScript">
<!--
var aa = document.getElementById("aa").elements;
for(i=0;i<aa.length;i++){
alert(aa[i].name);
}
//-->
</script>
var s = document.getElementsByTagName('*');
var len = s.length;
var tag;
var arr= [];
for(var i = 0; i < len; i++) {
tag = s[i].tagName;
if(tag && (/input|select|textarea|button/i).test(tag)){
arr[arr.length] = s[i];
}
}
alert(arr);