to access interface attributes at runtime

Hi,

My program contains a interface i1 in system sys1 & interface i2 in system sys2. I have to write a function in sys1 to get the attributes of either i1 or i2 based on the system , with out compilation error.

ie) if system is sys1.

x = i1=>attribute.

else if system is sys2.

x = i2=>attribute.

endif.

kindly help me to solve this issue with out getting compilation error.

Thanks,

Jey