How can I get data in radio button?

Question

I want to get data in same page.while the radio button check ,textbox 's which is in the same page , value can be changeable.what can I understand radio button check or not.
out.println("<td style=\"width: 16%\"><input type='radio' name='rapor1' value='ithalat' ><B>Ithalat</B></td>");

Answer 1

do some thing like this,
var rcb=eval('document.mgmodemsdrivers.portChk');
or di it by ( .getemenetbyid("xyz") )
if(rcb.checked==true)
//do process
after getting it in var , (.checked) will return checked or not .