function getCurrentNumberRegistrants(thisSlot) {

   $.getJSON("http://www.boards2bits.com/fcwebservices/registrationservices.asmx/GetNumberRegistrants?callback=?&format=json", 
                    {"slot": thisSlot}, 
                      function (data) { $('.num-registrants').html(data.d); }); 
}

function getCapacity(thisSlot) {

   $.getJSON("http://www.boards2bits.com/fcwebservices/registrationservices.asmx/GetCapacity?callback=?&format=json", 
                    {"slot": thisSlot}, 
                      function (data) { $('.capacity').html(data.d); }); 
}