function swapImage(imageToChangeID, imageSRC)
{
    //  Swap image
    var imageToSwap
    imageToSwap = document.getElementById(imageToChangeID);
    
    imageToSwap.src = imageSRC;
}

function swapInnerHTML(elementID, newText)
{
    //  Swap inner HTML
    var element
    element = document.getElementById(elementID);
    
    element.innerHTML = newText;
}


function inputStyle(inputID)
{
    //  Change style
    var inputBox
    inputBox = document.getElementById(inputID);

    if (inputBox.className == "inputOver")
    {
        inputBox.className = "inputOut";
    }
    else
    {
        inputBox.className = "inputOver";
    }
}    

function showHide(elementID)
{
    // Show or hide an element
    var element
    element = document.getElementById(elementID);
    
    if (element.style.display == "none")
    {
        element.style.display = "block";
    }
    else
    {
        element.style.display = "none";
    }
}