Need some information regarding this radio buttons .......

if i select radio button in form (yes, no) i had written code in the panel if i selected yes it will display some contents in the same form again i repeated same code for different options like b.tech,M.tech but it will get overlap both if we use NO radio button its ok . But when i had click yes button it getting overlap is there any adjustments to do without over lapping
i mean that


{
Course:B.tech(yes,No)(Radio buttons)
[here some details regarding B.tech course]
}//panel1
again
{
course:M.tech(yes,No)
}//panel2

here if we click yes both are overlapping(B.tech details are display on the M.tech panel) if click No it will display Normal if we give space between panels its ok but i need to avoid wastage of space in the form