fix image height in some browser if they don't support height:100% and trigger callback after images are loaded

Add possibility to pass a callback function

Fix hotspots in older browsers (IE6/7) + javascript transparency fallback

Small bugfix for older internet explorer versions (lower than v.8.0)

added support for touch screens

mouse wheel animation improved

fixed drag and added kinetic scroll (thanks evgeny g likov)

minor change

first commit