document.writeln("Exercise 3.1");
document.writeln("<hr>");

var tal1;
var tal2;

function numberInput()
{
    tal1 = prompt("Wilkommen till kalkylatorn", "Skriv tal 1");
    tal2 = prompt("Wilkommen till kalkylatorn", "Skriv tal 2");
}

function addition()
{
    var additionResult;
    additionResult = parseInt(tal1) + parseInt(tal2);
    return additionResult;
}

function multiply()
{
    var multipliedResult;
    multipliedResult = parseInt(tal1) * parseInt(tal2);
    return multipliedResult;
}

function subtract()
{
    var subtractedResult;
    subtractedResult = parseInt(tal1) - parseInt(tal2);
    return subtractedResult;
}

function division()
{
    var dividedResult;
    dividedResult = parseInt(tal1) / parseInt(tal2);
    return dividedResult;
}