Drivers bottom window strip come away, how to refit?

Hi guys, right the bottom long window strip on the drivers door, it has peeled away i guess just the glue has dried up, now how do i refit this? can it be glued back or is it a whole new strip with adhesive strips on it?

Thanks

Carl
 
thanks foxspeed but that isnt the strip :/ its the one that runs at bottom of the window and attaches onto the b-pillar? its come away from the b-pillar and i dont know how to stick it back on or if it needs replacing
 
It's held in at the rearmost part by a plastic clip, I would say Renault only for it.