Javascript error

[HeadBut]

I get an error: 'document.PhoneLookup has no properties'
I tried to make the field not hidden? and I tried type="text" with style=" display: none;". Whats causing this error? I also put a space in the value?

here is the line thats seems to be problematic:

if(document.PhoneLookup.PNField.value = ""){

Blah,Blah.....
}

the object is this:
<FORM NAME="PhoneLookup" ACTION="includes/lookup.cfm" METHOD="POST">
<INPUT TYPE="hidden" NAME="BemmsField" VALUE="">
Blahblah..
</form>

[oxbaker]

in your example you dont even have a field labeled PNField. you have one hidden field. did you omit it for the example? or is it not there?

post the entire form html so we know if your just type-oing yourself out or if you really are missing a field (and therefore the properties)

mcm