Multilple functions in nested IF

Hi.

I have these 4 functions that i want to be able to "run" in a nested IF where the functions are used in this manner:

=if((funct1 or funct2 or funct3 or funct4);"OK";"")

funct1: =IF(AND(B7=1;D7=1;E7=1);"OK";"")
funct2: =IF(AND(B7=0;C7=1;F7=1;A7<10000);"OK";"")
funct3: =IF(AND(B7=0;C7=1;G7=1;A7<25000);"OK";"")
funct4: =IF(AND(B7=0;C7=1;H7=1;A7<50000);"OK";"")

Best regards

Nicolai