Splitting Names F/M/L and sometimes F/L

[Brian.Osborne]

I need to split Names that are captured with my QTP script. I need to be able to use FirstName, MiddleName, and LastName independently.
The Issue is, sometimes the MiddleName is missing.
Is there a way to look at the right most characters till the space and call this first name, then look at the left most characters till the space and call this last name?