$(function(){
    $('.gcienroll').click(function()
    {
        var id = "";
        checked = false;
        //get courseid for button 
        id  =  $(this).attr("courseid");
        $('input[courseid=' + id +']:radio').each(
        function()
        {   //check radios for a select value
           if(this.checked)
           {
              checked =true; 
           } 
        });
        if(!checked)
        {
            alert("Please select a date");
            return false;
        }
    });
    
});