On the global/local declaration issue, one of the things going on is that Firefox's JS interpreter correctly handles variable scope (the variable only exists inside of the scope where it's declared)...

If you can't tell by matching the reported line number with your code, then insert alert()s for debugging. For instance, if you put one before and one after the send() call, and the first alert()...

As always: how does it fail? What happens, how does that differ from your expectations, what debugging information do you get? (Tip: go to Tools > Internet Options, Advanced tab, and make sure...

The pattern I posted will only return true for a dot if it has one or more numeric digits after it. Make sure you're actually trying what I posted.

Try if(!form1.paid.value.match(/^(\d+|\d*\.(\d+))$/)).

Try using the CSS cursor property on the image button to control the cursor's appearance.

No, that doesn't really tell me anything useful.

What I'm saying in my post is that you need to wrap the target URL you're changing the image's source to in single quotes. You're constructing an...

If you have any interest in Web form usability, you may find my Web form autofocus JavaScript (http://lostsouls.org/grimoire_form_autofocus) snippet useful. The idea is simple: if a user is...

I can say with great conviction that this is the wrong forum. Whatever you wind up doing about your crawler, I sincerely doubt that you will do it in JavaScript. (I also hope and pray that this is...

Try this: eval('document.' +Imgname+'.src = \''+sImage+'\'');

You are probably in dire need of debugging feedback; lots of people seem to think they have to write JavaScript using solely their...

Change the onSubmit version to just onSubmit="return chkrange(this)". Inside the form tag, this already refers to the form.