tipsy : Facebook-style tooltip plugin for jQuery

tipsy is a jQuery plugin to help you creating a Facebook-like tooltips effect based on an anchor tag’s title attribute, tipsy offers you set the tooltip direction, dynamic direction, fade effect, etc.

When tipsy runs it removes any existing value for an element’s title attribute in order to suppress the browser’s native tooltips and store your original title value in the elemen’t original-title attribute in case you need to retrieve it later.

You can see how tipsy working here and download tipsy here.