Change hyperevent_content for new graph layout
allow minus/plus buttons to change graph level and update positions with progress bar
Some little improvements
Use prototype for Queue methods
Change some method name to be more explicit
Add center button compatibility for Chrome browser
Some code cleaning
Add button for commit dedf9b0e2d299622f32c9eea0e8ba74b95b9aa97
Fix search result with wrong values when graph change it's parameter and redraw
Move graph styles in correct place
Adjust some tricks in graph code