Question

How can i disable the one radio input from the radio group ?

<input type="radio" name="radiogrp" value="op1" checked="checked">Option1
<input type="radio" name="radiogrp" value="op2"> Option2
<input type="radio" name="radiogrp" value="op3" > Option3
<input type="radio" name="radiogrp" value="op4"> Option4

My question is i want to disable option1 after clicking on any other button

For example:

when i select option2, than option1 should be disabled

Answer 1

Check this Fiddle I have just added

Let me know if this is not what you intended

As requested – posted fiddle answer

$('.rd').click(function(){
    $('.rd[value="op1"]').attr('disabled', 'disabled');       
});​