[thelist] JS field validation ?
Bob Davis
bobd at members.evolt.org
Tue Feb 20 12:54:39 CST 2001
Hi all,
I'm having a little problem getting something to work. I am trying to
determine whether a value entered into a form field is a number, and, if it
is, to call another function.
My validation function is:
function CheckRange(box) {
if (isNaN(box.value)) {
alert('You must enter a number')
}
else { valChange() }
}
and the form field looks like this:
<input type="text" onChange="CheckRange(this)" size=1 name="xaxis" value="0"
tabindex="1">
For some reason, if I enter a non-numeric value into the field, the alert
box does come up, but the valChange function is called. It shouldn't be,
right?
Obviously, I've made a mistake somewhere. I just don't know where it is.
Can anyone offer some advice?
TIA,
bob
--
bob davis
bobd at members.evolt.org
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