How does document.getElementsByTagName work

I need to pick up the following element from a form
<input type="text" name="new_limit" size=10>

In my java script I have the following code:

<script language="javascript">
function submitAll()
{
var elements = document.getElementsByTagName("newlimit");

for (var i = 0; i < document.forms.length - 1; i++)
{
var input = document.createElement("input");
input.type = "hidden";
alert(elements[i].value);
}
}
</script>


I have put the element within the <newlimit> tags

<newlimit><input type="text" name="new_limit" size=10></newlimit>

Am I using the wrong havascript function and that document.getElementsByTagName should not be used on a form.

Thanks for any help Tony

Sorry forgot to add that

alert(elements[i].value); is returning undefined

Wrap your alert in "if(elements[i].value){ }" to get rid of the error. Of course, you've still got something weird going on because i represents the number of forms and not the number of elements in a given form. Seems kind of a weird way of doing things. It strikes me that it's possible that getElementsByTagName() isn't working because it's expecting valid DOM elements, of which newlimit is not one.

Thanks, so I am going the wrong way about trying to solve this problem.

Do you know what javascript function I can use to pick up the form elements new_limit and borg_num

In my code it is like this within a loop

<form name="limits" method=POST action="global">
<input type="text" name="new_limit" size=10>
<input type="hidden" name="borg_num" value="<%= rs.getString("borg_num") %>">
<input type="submit" value="Amend Limit">
</form>

how do I say in javascript pick up all text identified by new_limit in the form limits.

The problem is that thery want to keep the amend a single limit button and as well as have a new amend all limit button.

Thanks for any help

Tony

Thansks for any help, getting slightly desparte