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onClick & Form Verification

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ironmunk

ironmunk

Technical User
Aug 21, 2001
51
CA
Hi, can anyone assist me with the following. I need the code to

a) once a user clicks the submit button on a form it verifies the data in the text field is valid (not null).
b) If all data entered then run php script or a pop up message will appear telling users to fillin all data fields.
 
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Inside the form tag, specify an onsubmit event and call some javascript function you make to verify inputs. If you discover a problem, use "return false;" else if everything's good, use "return true;".
 
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ironmunk, this is a small example of a validation script and how its used.

Code: 
<html>
<head>
<script>
function validate() {
 //creates a var that holds the parameters &quot;document.myForm&quot;
 var check = document.myForm;
  //if the name field is blank
  if(check.name.value == &quot;&quot;) {
    //throw an alert
    alert(&quot;Please fill in a name&quot;);
    //put focus on the name field
    check.name.focus();
    return false;
  }
  if(check.address.value == &quot;&quot;) {
    alert(&quot;Please fill a proper address&quot;);
    check.address.focus();
    return false;
  }
}
</script>
</head>

<body>
//onSubmit calls the function, if function not satisfied alert comes, if satisfied form gets sent via the action
<form name=&quot;myForm&quot; method=&quot;post&quot; action=&quot;someform.html&quot; onSubmit=&quot;return validate();&quot;>
  Enter Name:  <input type=&quot;text&quot; name=&quot;name&quot;><br><br>
  Enter address:  <input type=&quot;text&quot; name=&quot;address&quot;><br><br><br>
  <input type=&quot;submit&quot; name=&quot;Submit Form&quot;>
</form>
</body>
</html>

I have this little thing, Advanced Delusionary Schizophrenia with Involuntary Narcissistic Rage.
It's no big deal really...
 
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Glad I could help...

I have this little thing, Advanced Delusionary Schizophrenia with Involuntary Narcissistic Rage.
It's no big deal really...
 
Upvote 0 Downvote
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