Issue while working with attributes

Hi all,

  I am putting my all time issues in this threat.(Sales and Service pros especially)

CASE 1 :  I have 2 fields say "Premium" and "Plan" in BT115H_SLSO. When i added some thing on the field 1 the field 2 has to be disabled.

CASE 2 : I have 2 fields in BT120_CPL,Drop down "RANGE" and Drop down "Profit". When i select a value in drop down 1 and the drop down 2 values has to be get                  in drop down(contains different values for different selections in dropdown).

CASE 3 : I have field in BT115H_SLSO, check box "Not Sync" and button Sync. If i the value of check box has checked then the button has to get disabled.

Please share the solution for these scenarios.

Thanks,

Shyam.