need help with windshield rear view mirror
 

i have a 94 civic my center windshield mirror came off and took a chip of
glass with it but i just need help getting it back on. i know i can buy the
glue kit from an auto parts store but i don't know how on a honda to get the
the metal thing the mirror slides down onto off of the mirror so that i can
glue it to the windshield and let it dry then put the mirror back on that.
does anyone know how to get the metal piece seperated from the mirror?
please let me know. thankyou.

-jeff