With this tiny script you can use png images with alphpa transparency without risking that 90% of your visitors don't see the transparent effect. This script detects Internet Explorer on Windows. If true, it will return the microsoft-specific filter to display transparent png images in MSIE. Works with MSIE 5.5+. Other browsers (Mozilla, Netscape, Opera, Safari, MSIE Mac!) are capable of displaying pngs with alpha transparency without using strange filters.