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• / Internet Programming
• / JavaScript
• / Form Handling
• / Sample Code

Sample Code

• Validate Phone or Fax Number

  by PradipPatel

  This is a small javascript function that can be used to validate a phone or fax number..

• How to disable all elements on a form

  by edwardtanguay

  You almost always want to have your form to be disabled as soon as the user pressed the submit button so that the user doesn't accidently submit the form twice. Here's how..

• Trimming form fields

  by Andy Clarke

  Web forms often ask visitors for non-essential information, but long and complicated forms can seriously hinder the e-commerce sales process. Wouldn't it be cool to give users the option to hide these optional fields at their own discretion, and with a clever use of Javascript, the DOM and some CSS we can!.

• Force case restrictions

  by tlkelley

  Change a text field to all lowercase or uppercase before submitting..

• Field Content Validation

  by tlkelley

  Performs validation on a HTML field based on the criteria you specify..

• Number Validation

  by tlkelley

  Use this function to validate a form field to only accepts numbers..

• Validate Currency Field

  by tlkelley

  Want to validate your field to only accept US currency? Try this short JavaScript function..

• TextArea character limits

  by tlkelley

  This code will show how to limit the number of character a user can enter into the HTML TextArea form field..

• Dynamically filling ComboBoxes

  by kiranpai

  Filling the values of a dropdown SelectMenu depending on the selection in another Menu..

• Validating the form contents

  by kiranpai

  How to validate entries in a form before allowing it to be submitted.

• Multiple Submit Buttons

  by kiranpai

  This script shows you how to submit the contents of a form to different programs depending on which Submit button you press..

• Automatically check/uncheck multiple checkboxes

  by kiranpai

  Allow a user to easily uncheck and check all the checkboxes on a form.

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