Making .gif backgrounds transparent

[Ashley Weed]

I feel way out of the loop of things... I have spent two years fully swamped in Robotics and work to do with it. Now, I have finally got back to an old passion of webpage designing.... I used to have a place online I went to for graphics.... you could design your own graphic in any program... upload the graphic, and there was a feature to make the .gif an image with a transparent background..... I thought someone out there might have a hint on how to change a .gif with a solid background to a transparent background. Thanks!