Droid Incredible Help !?

So I pretty much F***** my droid incredible charger, its works but doesnt charge how it used to. Both my parents have Droid X's and I saw that the chargers are similar. I was wondering if its safe to use the Droid X charger on my Droid Incredible because someone told me it might break my phone because one is Motorola and the other is HTC. Please help !