function getNumbers(){

    //Pull numbers and make them integers.
    let num1 = parseInt(document.getElementById("num1").value);
    let num2 = parseInt(document.getElementById("num2").value);
    let end = parseInt(document.getElementById("end").value);

    //Verify numbers are integers.
    //Verify first and second numbers aren't larger than 10.
    //Verify ending value isn't greater than 1000.
    if(!Number.isInteger(num1) || !Number.isInteger(num2) || !Number.isInteger(end)){
        alert("Only enter numbers!");
        return;
    } else if (num1 > 10 || num2 > 10){
        alert("Only enter values less then 10.");
        return;
    } else if (end > 1000){
        alert("Ending number must be below 1000.");
        return;
    }

    //Generate an array and save to 'numbers'.
    let numbers = generateNumbers(1, end);

    //Display our array.
    displayValues(numbers);

    //Create an array, start at 1 end at end number.
    function generateNumbers(start, end){
        let numbers = [];
        for (let i = start; i <= end; i++) {
            numbers.push(i);
        }
        return numbers;
    }

    //Set results div inner html to nothing.
    //for each element verify multiples, assign classes and innerHTML.
    //appendChild div with newly created col.
    function displayValues(numbers){
        results.innerHTML = "";
        numbers.forEach(element => {
            let div = document.createElement("div");
            div.classList.add("col","border","border-dark", "p-2");
            if(element % num1 === 0 && element % num2 === 0){
                div.classList.add("fizzbuzz", "bg-warning");
                div.innerHTML = ("FizzBuzz");

            } else if (element % num1 === 0){
                div.classList.add("fizz", "bg-secondary");
                div.innerHTML = ("Fizz");
            } else if (element % num2 === 0){
                div.classList.add("buzz", "bg-dark");
                div.innerHTML = ("Buzz");
            } else {
                div.innerHTML = element;
                div.classList.add("bg-light");
            }
            document.getElementById("results").appendChild(div);
        });
    }
}