CRM 2011: How to open a different form through Javascript on Information form load

Hi,

In Dynamics CRM 2011, I have two forms for an Entity. On form load I want to load a different form based on a condition.

Steps are as bellow:

1. From related entity grid view, user opens a record.

2. Information form loads, here I want to check a condition. if the condition is true load different form.

Is this possible? if yes, how I can achieve it.

Thanks