Uncaught TypeError: Object [object Object] has no method

Question

I Placed a DateTime Control using Jquery on my project , its working fine on some forms but not working on some forms, while debugging javascript code i got javascript exception : Uncaught TypeError: Object [object Object] has no method 'datetimepicker'

I googled it - its occurred because of a jquery conflict and If DateTime is loaded before jquery it will give this error.

But not getting how to fix this problem, anyone can give me answer about that?? 
its urgent ..i have to complete my project.