Javascript abstracts the concept of pointers. Data is only ever passed around by reference. It is usually safer, since memory management is handled automatically and you can be sure an object equals another object if they are compared.
If you need to compare objects to see if they are identical, you may have better luck creating a "compare" method that directly compares primitive attributes (strings can be compared directly, for instance).
Hope this helps, sorry I can't provide a more specific implementation suggestion. Too many details to focus on at once.
