TYPO3 Core

I used the bootstrap dropdown button in my backend module and recognize a weird behavior. The button always disappear after clicking on it. After four hours trying to find a solution i found that the for that behavior relies on a conflict between bootstrap and PrototypeJS.

[[http://www.softec.lu/site/DevelopersCorner/BootstrapPrototypeConflict]]

The site describe the problem very well and offers two solutions. Please implement one of them. It seems to be that not only the dropdown function is affected.