Javascript code stops working in PHP page

[john2020]

I am not sure if I am posting this to the correct forum.  I have some Javascript that works fine in an html page.  Basically it submits the form when one radio button has been selected from each of 11 groups.

function Validate_Form_Submit()
{
R_Checked=0;
for(i=0;i<myForm.elements.length;i++)
{
	if(myForm.elements[i].checked)
	{
		R_Checked++;
	}
}
if(R_Checked==11)
	document.forms["myForm"].submit();
}

 

Then I put this within the radio button input tag:

onClick="Validate_Form_Submit()

 

If I change the name of the page from .html to .php this code stops working i.e. stops submitting the form even though the source code looks the same for the two files.  Isn't it a bit strange?

 

[john2121]

In case someone else has the same problem, I solved it by using:

document.forms[0].elements

instead of:

myForm.elements

.  The second worked in an html page but not in a php page.