JavaScript

Modify CSS with JavaScript

 

Detect Browser with JavaScript

 

Show / Hide Elements with JavaScript

If you would like to show / hide certain elements of your page based on user action, such as clicking a button or choosing a value from a select box, you can use JavaScript to achieve your task.

Change Input Element Type using JavaScript

You can change an input element's type, from text to password, or hidden to text for example, dynamically using JavaScript.

Submit a Form with JavaScript

If you want to spare your users the extra step of clicking a submit button, you can use JavaScript to submit a form when a certain user action takes place.

Popup when a user exits your site

This can be achieved using JavaScript, but it's a little tricky.

JavaScript Reordering or Swapping Elements

Using JavaScript, you can swap or reorder elements on your page.

JavaScript Drag and Drop

There are quite a few sources for Javascript Drag and Drop tutorials, most of which have browser compatibility issues. I've tried to compile the simplest and quickest method here, which works in all browsers.

JavaScript : Creating drop down menus

 

Dynamically Update Fields