function showKey(statKey) {
   hideButton('showKey','hideKey');
   show(document.getElementById(statKey).style);
}

function hideKey(statKey) {
   hideButton('hideKey','showKey');
   hide(document.getElementById(statKey).style);
}

function highlightKey(keyName) {

     if (document.getElementById(keyName)) {
        document.getElementById(keyName).style.background = '#FF8B3D';
     }
}

function unHighlightKey(keyName) {

    if (document.getElementById(keyName)) {
        document.getElementById(keyName).style.background = '';
    }

}