Door handle glue

[Typhoon]

A colleague of mine has a little noddy car (Fiat 500) and the door handle sealant has melted and the door handle has come away from the door. What is the best glue to use to seal it back on?

Cheers

 

[Typhoon]

ABORT THREAD!

She bought the door handle in today, all the plastics are smashed so it's replacement handle time!