A jQuery plugin to help implement the over label technique. When the user puts focus on the input, the label will be hidden. When the input is blurred and has no value, the label will be shown again. Just need to write the CSS based on your DOM structure to position the label over the element correctly.
jQuery Price Format is a plugin to format input text fields as prices. For example, if you type 123456, the plugin updates it to US$ 1,234.56. It is costumizable, so you can use other prefixes and separators (for example, use it to get R$ 1.234,55).