check radio button by name jquery code example

Example 1: jquery get value of radio input

$('input[name="name_of_your_radiobutton"]:checked').val();

Example 2: jQuery check a radio button

// jQuery version 1.6 or above use:  
$("#myRadioID").prop("checked", true);
 
//jQuery versions below 1.6 use:
$("#myRadioID").attr('checked', 'checked');