creating list of objects in Javascript

Question

Is it feasible to make a list of your own Javascript objects? This is the sort of information I want to keep:

Date : 12/1/2011   Reading : 3   ID : 20055    
Date : 13/1/2011   Reading : 5   ID : 20053    
Date : 14/1/2011   Reading : 6   ID : 45652