[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now


Validate and Submit

Posted on 2007-11-25
Medium Priority
Last Modified: 2009-07-03
Hi All,

I have been wracking my brain all morning and haven't come up with anything so here goes:

I have a form with this basic structure:

<form action="script.php" name="askExpert" onSubmit="return validateForm(this)" />

/-----Form Input fields-----/

<a href="javascript:document.askExpert.submit();">
<img src="submitbutton.jpg" alt="Submit" border="0"></a>

The form submits perfectly.
When I strip out the ---><a href="javascript:document.askExpert.submit();"><--- the validation works perfectly. However, when I use them together, the submit function skips the validation and just submits the form...

What do I need to add for both events to be fired?

Thanks in advance for your help!
Question by:CreativeToyBox
  • 4
  • 3
LVL 12

Expert Comment

by:Sinoj Sebastian
ID: 20346540
<a href="#" onclick="document.askExpert.submit();return false;">

Author Comment

ID: 20347238
I replaced ---> <a href="javascript:document.askExpert.submit();">
with this ---> <a href="#" onclick="document.askExpert.submit();return false;">

It still submits perfectly..  however, it skips the validation ---> onSubmit="return validateForm(this)"
LVL 63

Expert Comment

ID: 20347245
Check this:
<form action="script.php" name="askExpert" onSubmit="return validateForm(this)" />
/-----Form Input fields-----/
<a href="#" onClick="document.askExpert.Submit.onclick();return false">
<img src="submitbutton.jpg" alt="Submit" border="0"></a>
<input type="submit" name="Submit" value="Submit" style="display:none;" >

Open in new window

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Author Comment

ID: 20347556
I tried it and 'firebug' returned it as invalid:not a function

document.askExpert.Submit.onclick is not a function
onclick(click clientX=0, clientY=0)

I played around and tried various other things - and still no validation + submit.

Author Comment

ID: 20348515
Ok, I solved part of the problem with this:

<a href="javascript:void(0);" onclick="validateForm(document.askExpert)">

However, I need to add a submit string to the function like this:

function validateForm(f) {
  // some stuff ...
  if (no_error)
    return false;

Only problem now is..  I am not sure how to make the submit string work. Where do I place this string, and what should the wording be?  'no_error' is not working at all.  Here is the simple validation script:

<!-- Original: Jeff Harding (jbh@site-ations.com) -->
<!-- Web Site: http://www.site-ations.com -->
<!-- Modified by: Ronnie T. Moore, Editor -->

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

var empty = new Image(); empty.src = "fieldempty.gif";
var email = new Image(); email.src = "emailerror.gif";
var zipcd = new Image(); zipcd.src = "ziperror.gif";
var phone = new Image(); phone.src = "phoneerror.gif";

var haveerrors = 0;
function showImage(imagename, imageurl, errors) {
document[imagename].src = imageurl;
if (!haveerrors && errors) haveerrors = errors;

function validateForm(f) {

haveerrors = 0;
(f.comments.value.length < 1)
? showImage("commentserror", "images/f/xmark.gif", true)
: showImage("commentserror", "images/f/checkmark.gif", false);

(f.firstName.value.length < 1) // validate first name length
? showImage("firstNameerror", "images/f/xmark.gif", true) // no semi-colon after this line!
: showImage("firstNameerror", "images/f/checkmark.gif", false); // true = errors, false = no errors

(f.lastName.value.length < 1) // validate last name length
? showImage("lastNameerror", "images/f/xmark.gif", true)
: showImage("lastNameerror", "images/f/checkmark.gif", false);

(f.phone.value.length < 1) // validate last name length
? showImage("phoneerror", "images/f/xmark.gif", true)
: showImage("phoneerror", "imagesf/checkmark.gif", false);

(f.email.value.search("@") == -1 || f.email.value.search("[.*]") == -1) // validate email
? showImage("emailerror", "images/f/xmark.gif", true)
: showImage("emailerror", "images/f/checkmark.gif", false);

return (!haveerrors);

// End -->
Edit/Delete Message
LVL 63

Accepted Solution

Zvonko earned 1000 total points
ID: 20348582
Check please this:
<form action="script.php" name="askExpert" onSubmit="return validateForm(this)" />
/-----Form Input fields-----/
<a href="#" onClick="document.askExpert.Submit.click();return false">
<img src="submitbutton.jpg" alt="Submit" border="0"></a>
<input type="submit" name="Submit" value="Submit" style="display:none;" >

Open in new window


Author Comment

ID: 20348813
Wow, that works without the added mess!


You also have an easy way to use onBlur to validate the lines as my clients tab through the form?

(that way the checkmarks fire off as they work down the page)
LVL 63

Expert Comment

ID: 20353968
You can get the input fields of a tab and call all onBlurs of that tab like this:

var elem = document.getElementById("tabID1").getElementsByTagName("input");
for(var i=0;i<elem.length;i++){


Featured Post

Upgrade your Question Security!

Add Premium security features to your question to ensure its privacy or anonymity. Learn more about your ability to control Question Security today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

JavaScript can be used in a browser to change parts of a webpage dynamically. It begins with the following pattern: If condition W is true, do thing X to target Y after event Z. Below are some tips and tricks to help you get started with JavaScript …
Originally, this post was published on Monitis Blog, you can check it here . In business circles, we sometimes hear that today is the “age of the customer.” And so it is. Thanks to the enormous advances over the past few years in consumer techno…
In this fifth video of the Xpdf series, we discuss and demonstrate the PDFdetach utility, which is able to list and, more importantly, extract attachments that are embedded in PDF files. It does this via a command line interface, making it suitable …
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.
Suggested Courses
Course of the Month20 days, 4 hours left to enroll

872 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question