Revising gradient colors in existing jpg files

I'd like to revise the base colors of several jpgs which are used to
provide a website's layout. Headers, footers, navigation...

The jpgs all contain variations of a light-blue to somewhat darker-
light-blue gradients.

I can load any jpg and change the hue settings getting a different
result. Save them back and I'm done.

But hue limits the choice of colors.

Is there a better PhotoShop CS3 technique which will result in a wider
range of color choices to update the gradients in images without
redrawing the image?

SCK

"SamCKayak" <sam.DeleteThis@elearningcorner.com> wrote in message
news:7ba67206-67f9-47c4-9a43-e0249d2d033a@d4g2000prg.googlegroups.com...
> I'd like to revise the base colors of several jpgs which are used to
> provide a website's layout. Headers, footers, navigation...
>
> The jpgs all contain variations of a light-blue to somewhat darker-
> light-blue gradients.
>
> I can load any jpg and change the hue settings getting a different
> result. Save them back and I'm done.
>
> But hue limits the choice of colors.
>
> Is there a better PhotoShop CS3 technique which will result in a wider
> range of color choices to update the gradients in images without
> redrawing the image?
>
> SCK

try selective color
adjust the blue and cyan sliders