If the second box is NOT "Kit", the flag is set to false. A little elementary logic will show you the decision tree.This function does not care what flag's current value is -- it simply sets flag to false at that step. The way you should handle this is to have the majority of the error checking done with Java Script. You then recheck the vital elements of the form with the CGI.Most error checking programs check each field one at a time, and display one error at a time.You could find some other solutions by googling around but I recommend re-thinking your approach if the above examples don’t work for you.There really is no answer to the question, "How do I validate a form?Java Script is an object-oriented, interpretive language used with HTML to provide dynamic capabilities to otherwise static webpages.
If you use the following script and Perl source you will know how to validate an entire form at once, displaying a series of error messages that your reader can then go back and fix.One issue with the Regex above is it’ll fail on this format: That’s it.Anything beyond this is going to be too opinionated.With that said, we’ll start off with the most permissive solution and work our way towards the other end. That’s typically all I ever assume about an email address.If the email the user types in doesn’t follow that structure, odds are they made a typo.
", because when you say you're validating the form, you're really confirming the inputs to the form are formatted correctly for the form.