on a keydown I get the following from jQuery:
jQuery.Event altKey: false attrChange: undefined attrName: undefined bubbles: true button: undefined cancelable
Not sure if you want to run events when the keys are pressed but you can try https://github.com/jeresig/jquery.hotkeys
Otherwise you can check if the shift key was pressed in the event from your code. Havent seen a library that handles this for you