Does anyone know the codes for a picture gallery??.. i've seen profiles were there are thumbnails of your pics and if you scroll over them it appears as a bigger size?? please help!

there are different ways of doing a gallery.
please post an example of the way you would like to go.

there are different ways of doing a gallery.
please post an example of the way you would like to go.

Now i can't find the pages but any examples would do..