dithering, gradiant, and transparancy

[kender]

I am looking to make a web graphic, with transparent background.

i would like it to be a gradiant color, fading from transparent to black.

when i do this, i get a white or grey to black fade.

any help?

[qzn]

are you using a .gif or .png format?
.jpg doesn't support transparency

[Lerura]

none of the browsersupported images supports partial transparency
the only way to make this effect is to create an image that contains the underlying part of the backgroundimage

[rch10007]

GIF supports transparency

[felgall]

PNG supports partial transparency but IE6 doesn't properly support PNG (IE7 should though).