is there a way i can capture the "increase/decrease" editor size (+/-) on client side ?

i'd like to run a javascript function onclick.

 

can u direct me to a code example where i can capture the save button on client side - i see the examples in this site of this feature but not the code itself.

 

is there any way i can capture any button-click (costumed or not) on client side ?

 

Thanks,

 

Ziv