Date Validations using Nintex Forms

Hi,

Using custom validations in Nintex forms i want to validate the date columns.

The date columns are as follows:

StartDate

EndDate

DADate

Validations:

StartDate<(CurrentDate-2Years) or

StartDate>(CurrentDate+2Years) or

Difference of StartDate & EndDate is < 2Years or

Difference of DADate & EndDate is < 1Year

Is this possible using the inline functions provided in Custom Validations. It would be better if this could be done through these functions rather than Javascript.

Thank You