Â« Â»

Handle and precess all of your form field validations using just one script. This JavaScript can verify numeric strings; monitor the status of the CapsLock state; verify empty strings, numeric, date, alphabetical, or e-mail fields value; confirm passwords; verify the formatting of phone numbers; monitor the minimum/maximum numbers of form input characters. Includes language-independent error messages and displays error messages in a div or using an alert box.

Label: extreme, form field, validator, Ultimate Form Validator, form input, field value, validation, CapsLock, string, monitor, password

For the best in Cable TV, High Speed Internet & Home Phone Service order Comcast Deals and save money.

Report to us error of this JavaScript

Demo
Enlarge
Reload
New window

Code
Files
CSS
JavaScript
HTML
Print

chkform.js

Copy All x2

<style>
#errordiv {
  border: 1px solid red;
  background-color: #FFAFAF;
  display: none;
  width: 50%;
  margin: 5px;
  padding: 5px;
}

.required {
  background-color: #CC4444;
}

.required:focus {
  background-color: #fff;
  border: 1px solid #f00;
}

.checkit {
  background-color: #E0E5EF;
}
</style>

Copy All x2

<script type="text/javascript" src="chkform.js"></script><script type="text/javascript">
function configureValidation(f,alerttype){
  f.firstname.isAlphaNumeric = true;
  f.lastname.isAlphaNumeric = true;
  f.email.isEmail = true;
  f.phone.isPhoneNumber = true;
  f.birthday.isDate = true;
  f.postalcode.isEmpty = true;
  f.password1.isLengthBetween = [4,255];
  f.password2.isMatch = f.password1.value;
  f.comments.optional = true;
  var preCheck = (!f.infohtml.checked && !f.infocss.checked && !f.infojs.checked) ? errormsg[0] : null;
  return validateForm(f, preCheck, 'required', alerttype);
}
</script>

Copy All x2

<div>
<form action="#" method="post" onsubmit="return configureValidation(this,3)" onreset="confirm(errormsg[99])">
<table class="formtable">
<tr>
<td>First Name:</td>
<td><input class="checkit" type="text" id="First name" name="firstname" value="" class="text"></td>
</tr>
<tr>
<td>Last Name:</td>
<td><input class="checkit" type="text" id="Last name" name="lastname" value="" class="text"></td>

</tr>
<tr>
<td>Email:</td>
<td><input class="checkit" type="text" id="Email" name="email" value="" class="text"></td>
</tr>
<tr>
<td>Email Preferred:</td>
<td><select name="emailpreferred">
<option value="text">Text</option>
<option value="html">HTML</option>
<option value="flash">Flash</option>
</select></td>

</tr>
<tr>
<td>Phone: (US only) </td>
<td><input class="checkit"  type="text" id="Phone" name="phone" value="000-000-0000" class="text"></td>
</tr>
<tr>
<td>Birthday:</td>
<td><input class="checkit"  type="text" id="Birthday" name="birthday" value="mm-dd-yyyy" class="text"></td>
</tr>
<tr>
<td>Gender:</td>
<td>Male:<input type="radio"  name="gender" value="male" class="radio" checked="checked"> Female:<input type="radio" name="gender" value="female" class="radio"></td>

</tr>
<tr>
<td>Password:</td>
<td><input class="checkit" onKeyPress="checkCapsLock( event )" id="Password" type="password" name="password1" value="" class="text"></td>
</tr>
<tr>
<td>Re-Enter:</td>
<td><input class="checkit" onKeyPress="checkCapsLock( event )" id="Password again" type="password" name="password2" value="" class="text"></td>
</tr>
<tr>
<td>Postal Code</td>
<td><input class="checkit" name="postalcode" type="text" id="Postal code" onKeyPress="javascript:checkNumber(this);" onKeyUp="javascript:checkNumber(this);"></td>
</tr>
<tr>

<td colspan="2">Select one or more of the following:</td>
</tr>
<tr>
<td colspan="2">HTML:<input type="checkbox" name="infohtml" value="true" class="checkbox"> CSS:<input type="checkbox" name="infocss" value="true" class="checkbox"> JavaScript:<input type="checkbox" name="infojs" value="true" class="checkbox"></td>
</tr>
<tr>
<td>Comments:</td>
<td><textarea id="Comment" name="comments" class="text" cols="20" rows="4"></textarea></td>
</tr>

</table>
<div id="errordiv"> </div>
<div>
<input type="submit" name="submit" value="Submit" class="button"> <input type="reset" name="reset" value="Reset" class="button"></td>
</form>
</div>