Thankyou for your very extensive reply. I have been trying to implement 
the function you replied to me with but unfortunately without much success.

Just to recap - I'm trying to validate a forms data entries and submit the 
form values automaticaly. As I mentioned the page was working perfectly 
with an update button to validate and update each row of data (as each 
line of data is contained in a form on the page) however the client does 
not want to press the update button!!

Jusdt to give you an idea:

Fields on the form are  (for each record)
CargoNo / StartDt / Day1 / Day2 / Vol

Each record contains its own <Update> button which does two things:
1 Validates form via the onSubmit function of the form:
onSubmit="returm FormValidator(this)"
2 Fires two vb script functions, let's call them UpdateRecords1 and 
UpdateRecords2

It does this via the Update button whose value is "Upd", so when the 
validation is done successfully the submit goes ahead via a familiar call:
if Request("btnAddOperator")="Upd" then....
call 
UpdateRecords1
UpdateRecords2

However I can't think of a way to implement this with your function 
without the update button!!

Also I tried calling the function on the onChange event of each field on 
the form in this format:

onChange="Checking()"

but without success! I planted alerts at various points but the script 
only proceeded to alert2.

Any ideas?


function Checking()
{
	
	alert("We are here");
	
	var oForm;
	var blnBlank;
	var sTemp = new String;
	
	// form object
	oForm = fEdit; // Builder is the name of the form
	
	alert("We are here2");
	
	blnBlank = false;
    // loop through the form elements
	for (i=0; i < oForm.length; i++)
	{
		sTemp = oForm.elements[i].name;
		alert("We are here3");
				
		// check for blanks
		if ((oForm.elements[i].value == '') && (sTemp.substr(0,6) !
= 'Length'))
			blnBlank = true;
	}
	
	if (blnBlank)
	{
		alert("You have left required fields blank");
	}
			
	else
	{
		alert("We are here4");
		document.fEdit.submit();
	}
}