how can i create animated gif in Photoshop?
There USED to be a plug-in for that, but natively PS has never had that functionality. Adobe FireWorks is designed specifically of web graphics including : slicing, roll over states and animated gifs. Flash also allows to export a movie as a gif… but that’s kinda overkill.
Actually, if you have CS4+ it does.
I found this step by step tutorial for creating animation in Photoshop CS2 and CS4+: http://www.wikihow.com/Create-Animated-GIFs-Using-Photoshop
If you want to create better animation, then, I prefer you to use animation softwares like: Adobe Flash, Synfig, and Pencil2D.