Changing background image in photoshop

To change the background into transparent, following steps should be done:


             (A)   Go to file and open any picture

             
            (B)   Again go to file and choose “save for web” option and a window will appear

            (C)   Go to the right hand side of the window and check for the following option

                       (1)GIF

                       (2)Transparency should be checked

                       (3)From the color table choose your desired color to be removed from the            image

                               (4)Click on the transparency

            (D) save the image with .gif extension.