function hideElement(element) {
    var elementToHide = document.getElementById(element);
    if (typeof (elementToHide) == 'object') {
        elementToHide.style.display = 'none';
    }
}

function showElement(element) {
    var elementToShow = document.getElementById(element);
    if (typeof (elementToShow) == 'object') {
        elementToShow.style.display = 'block';
    }
}

function setClass(element, className) {
    var elementToChange = document.getElementById(element);
    if (typeof (elementToChange) == 'object') {
        elementToChange.className = className;
    }
}


function BasementXLDownstairs() {
    hideElement('basementTextUp');
    showElement('basementTextDown');
    setClass('basementxlbackground', '');
    setClass('mnu_bmt_xl_d', 'LinkOn');
    setClass('mnu_bmt_xl_u', '');
}

function BasementXLUpstairs() {
    hideElement('basementTextDown');
    showElement('basementTextUp');
    setClass('basementxlbackground', 'upstairs');
    setClass('mnu_bmt_xl_d', '');
    setClass('mnu_bmt_xl_u','LinkOn');
}

function BasementXXLDownstairs() {
    hideElement('basementTextUp');
    showElement('basementTextDown');
    setClass('basementxxlbackground', '');
    setClass('mnu_bmt_xxl_d', 'LinkOn');
    setClass('mnu_bmt_xxl_u', '');
}

function BasementXXLUpstairs() {
    hideElement('basementTextDown');
    showElement('basementTextUp');
    setClass('basementxxlbackground', 'upstairs');
    setClass('mnu_bmt_xxl_d', '');
    setClass('mnu_bmt_xxl_u', 'LinkOn');
}

function openTerms() {
    window.open('terms.aspx', 'terms', 'scrollbars=1, height=500, width=600');
}