Please see this following link.
That's exactly I want to make but with little change, In place of a single LED I want to place 2 LEDs (not combined). I mean let's say we have 2 LEDs - one red, one green
When I press switch once, red LED should glow and green LED should be off again.
When I press switch again, green LED should glow and red LED should be off.
I'm new to electronics so please don't suggest me any complex circuit designs, just keep it simple ;] friends