This Life Expectancy Calculator
will calculate your life expectancy based on your life style (yes, making love will make you old and wise). The beauty of this script is its display! As soon as you change a form element the length of the bar chart will change too on the fly. Besides it is a perfect script if you want to study how to extract form element values. Crossbrowser.
Download the ZIP-file of this script containing the scale-image and the script-file (HTML-file).