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Extreme Form Field Validator 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.


Category: Form, Validation

Duplicate Data Fields Verifier/Notifier You can use this JavaScript code to verify or notify duplicate value of text boxes when users type them; such as an e-mail address or a password. If values of two data fields are different, this script will provide message error. Or you can use this code for different input fields.


Category: Form

Simple JavaScript for Auto-Sum with Checkboxes This JavaScript code example uses a for loop to calculate the sum of JavaScript checkbox values. This JavaScript will display a running total automatically when visitors click to select an item without reloading the current page. Very easy to edit and implement into your existing web forms.


Category: Form, Checkbox

JavaScript Text Auto-Select onClick If this JavaScript code example installed on a web page, when users click on text-container HTML elements then it will select all of its inner text automatically.

At present, this JavaScript code made to work on elements such as input, textarea, div, span, td, and pre. You still can edit it to work more HTML elements as you want. That's so helpful for website with a lot of text.


Category: Form

Validation (Character) Automatically removes specified characters from input box. Good for fields that require only text/number inputs. Easily modified to accept only text or only numerals.


Category: Form, Validation

Validation (Guestbook) Use JavaScript to ensure that all elements of a form are properly filled out before mailing.


Category: Form, Validation

Adding HTML Controls Use this JavaScript to add HTML controls to your forms. This example uses the <input> tag.


Category: Form, Textarea

Simple JavaScript Code for Layer Display Toggle One more JavaScript code example to show/hide a layer every time the users click the specified text link. In live demo of this JavaScript code example, the script used to toggle the comments in a post.


Category: Form

Simple JavaScript Number Formatter This JavaScript code example provides us two functions to clean up and format numbers quite nicely.

One JavaScript check number function will take any decimal number, negative or positive, and formats it by adding commas every three digits. The other JavaScript number format function can strip any non-numeric characters from a string leaving you with a valid decimal number. It also considers the minus sign and the period to be numeric and will not strip them unless the minus sign is not at the beginning of the number or there is more than one period.

These JavaScript functions make use of regular expressions to do the heavy lifting.


Category: Form

Drag and drop table content with JavaScript This JavaScript code is for dragging and dropping content cells of table. Table can contain colspan and rowspan cells. Large tables will be autoscrolled if dragged object come close to the page border. Dropping to some table cells can be forbidden with setting className="forbid".


Category: Form, Table

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