function adjustHeight( ) {
    //get the max height
    if(document.getElementById('leftMenu') != null && document.getElementById('leftMenu') != 'undefined' &&
       document.getElementById('middle') != null && document.getElementById('middle') != 'undefined') {
        leftMenuHeight = document.getElementById('leftMenu').offsetHeight;
        var middle = document.getElementById('middle').offsetHeight;
        var rightColumn = document.getElementById('rightColumn').offsetHeight;
        var maxHeight = leftMenuHeight;
        if(middle > maxHeight) maxHeight = middle;
        if(rightColumn > maxHeight) maxHeight = rightColumn;
                
        //adjust div heights
        if(document.getElementById('leftMenu') != null && document.getElementById('leftMenu') != 'undefined') document.getElementById('leftMenu').style.height = maxHeight + 'px';
        document.getElementById('middle').style.height = maxHeight + 'px';
        document.getElementById('rightColumn').style.height = maxHeight + 'px';
    }
}

function ow_imgSwap(id, imgUrl) {
    document.getElementById(id).src = imgUrl;
}

function viewPopup(name) {
    document.getElementById(name).style.visibility = "visible";
}