Masking in Flash!

• You need two layers for masking
• Give name for each layers 1st one 'bg' as backgroun and 2nd layer as 'mask'
• Go to layer 1 and import the picture in bg layer in frame 1
• Adjust the size of the picture
• Go to frame 50 and press f5 to insert frame
• Go to 2nd layer 'Mask layer' and draw the circle & put it in one side of the background picture
• Go to frame 50 and press f6 to insert keyframe
• Drag the circle to another end of the picture
• Right click between 1 and 50 frame and select shape tween
• Right click on layer 2 and select 'mask'
• Press ctrl+enter to see how it works in flash.