function showHideItems(myForm, myButton)
    {

    var myForm = document.getElementById(myForm);    //this is the ID of the form
    var myButton = document.getElementById(myButton);    //this is the ID of the plus/minus button image

        if (myForm.style.display != "none")
        {
            myForm.style.display = "none";
            swapImage(myButton,"plus");
        }
        else {
            myForm.style.display = "block";
            swapImage(myButton,"minus");
        }
    }

    function swapImage(myImage, state)
    {

        if (state == "minus")
        {
            myImage.src = "/images/buttons/minus.gif";
        }
        else
        {
            myImage.src = "/images/buttons/plus.gif";
        }
    }