<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script language="javascript">
function checkLink()
{
var trr = document.getElementsByName("linkTr");
alert(trr.length);
}
window.onload = function()
{
checkLink();
}</script>
</head><body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr name="linkTr">
<td> </td>
</tr>
<tr name="linkTr">
<td> </td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</body>
</html>
我一般出现这种错误,直接另外找方法实现了,不然你会很头痛!
A, APPLET, BUTTON, FORM, FRAME, IFRAME, IMG, INPUT, OBJECT, MAP, META, PARAM, TEXTAREA ,SELECT
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<Script src="jquery.js"></script>
<script language="javascript">
function checkLink()
{
var trr = $(".linkTr");
alert(trr.length);
}
window.onload = function()
{
checkLink();
}</script>
</head><body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr class="linkTr">
<td> </td>
</tr>
<tr class="linkTr">
<td> </td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</body>
</html>
IE下的document.getElementsByName()只能取input元素
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script language="javascript"> var getElementsByName = function(tag, name){
var returns = document.getElementsByName(name);
if(returns.length > 0) return returns;
returns = new Array(); var e = document.getElementsByTagName(tag);
for(var i = 0; i < e.length; i++){
if(e[i].getAttribute("name") == name){
returns[returns.length] = e[i];
}
}
return returns;
}
function checkLink()
{
var trr = getElementsByName("tr","linkTr");
alert(trr.length);
}
window.onload = function()
{
checkLink();
}</script>
</head><body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr name="linkTr">
<td> </td>
</tr>
<tr name="linkTr">
<td> </td>
</tr>
<tr>
<td> </td>
</tr>
</table>
</body>
</html>