//Example
CheckABox('myCheckbox','choice_2');


//Selects a checkbox choice given a checkbox class name and the option to choose
function CheckABox(checkBoxClass,nameOfChoice){
  //For each value in the checkbox options
 $('.'+checkBoxClass+' input[type=checkbox]').each(function() {
  //If the value matches the input, then check the box 
   if($(this).val() == nameOfChoice)
     $(this).prop('checked',true);
     
 });
    
}