DayNameSwitch.js

function dayName(day) {
    var whichDay = null;

    switch (day) {
        case 1:
            whichDay = "Mon";
            break;
        
        case 2:
            whichDay = "Tue";
            break;
            
        case 3:
            whichDay = "Wed";
            break;
            
        case 4:
            whichDay = "Thu";
            break;
            
        case 5:
            whichDay = "Fri";
            break;
            
        case 6:
            whichDay = "Sat";
            brake;
            
        case 7:
            whichDay = "Sun";
            break;
    }
    return whichDay;
}