如何解决Prototype与DataPicker或Tooltip之间的jQuery冲突？

I have a problem with my backend aplication. I have data field in my form, for which I am using plugin jQuery DataPicker. At first it works fine - when I click on the field calendar box pops up. The problem is that when I actually select any date, the calendar and the date field disappear.I have a problem with my backend aplication. I