SOS... how can i diable the other radio button if the other one is click..

heres my code:
the problem is if i click the income button then i click the other one both of them will be check.. and the value of the radio button will store in my database whre the radio name is the fieldname in my table,..wherein the value of radio button will be stored in my dataabse,.. help me pls on how to disable the other radio button,if the other one is click and vice versa...tnx in advanced!! GODBLESS!!!

re: SOS... how can i diable the other radio button if the other one is click..

When one radio is selected, you can fire a function that toggles the 'disabled' attribute of the other radio.

But that's a javascript question :)