// JScript File
function checkTimeSlots(chkbox1, chkbox2, chkbox3){
//check if boxes split
    if(splitSlots(chkbox1, chkbox2, chkbox3)){
        alert('Splitting time slots is prohibited.');
    }
    if (maxHours(chkbox1, chkbox2, chkbox3)){
        alert('You may only select 2 time slots.');
    }
}

function splitSlots(chkbox1, chkbox2, chkbox3){
    if(document.getElementById(chkbox1).checked && document.getElementById(chkbox3).checked && !document.getElementById(chkbox2).checked){
        document.getElementById(chkbox1).checked = false;
        document.getElementById(chkbox2).checked = false;
        document.getElementById(chkbox3).checked = false;
        return true;
    }
 }
    
function maxHours(chkbox1, chkbox2, chkbox3){
    if(document.getElementById(chkbox1).checked && document.getElementById(chkbox3).checked && document.getElementById(chkbox2).checked){
        document.getElementById(chkbox1).checked = false;
        document.getElementById(chkbox2).checked = false;
        document.getElementById(chkbox3).checked = false;
        return true;
    }
}