finding out the number of elements in a form

[ninerloyal]

Does anyone know if there is a good way to find out the number of elements in a form?

For example, if I had the following form:

<FORM NAME=TEMP>
<INPUT>
<INPUT>
<INPUT>
<INPUT>
</FORM>

is there a way to set up a variable that would be

var numElements = 4;

for this simple form?

 

[dwarfthrower]

var myForm = document.getElementByID("myFormID");
var allInputs = myForm.getElementsByTagName("input");
var numElements = allInputs.length;

Of course that only counts input elements on the form and not textarea, button or img controls... but the same principle can be applied to them and the totals added together if need be.

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[tsuji]

This contains the needed info. How to use the data depends on the need.
[tt]
function showit() {
var celem=document.formname.elements;
var s="# of elements in the form: "+celem.length+"\n";
for (var i=0;i<celem.length;i++) {
s+=celem.tagName+"\t"+celem.name+"\t"+celem.type+"\n";
}
alert(s);
}
[/tt]