// Custom utility functions

function toTitleCase(str) {
    return str.substr(0,1).toUpperCase() + str.substr(1).toLowerCase();
}

function formatTitle(title) {
    return 'Cyclus' + (title != '/' ? ' / ' + toTitleCase(title.replace(/\//g, ' / ')) : '');
}


// Custom SWFAddress and Ajax handling

function getTransport() {
    if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
    } else if (window.ActiveXObject) {
        try {
            return new ActiveXObject('Msxml2.XMLHTTP');
        } catch(e) {
            return new ActiveXObject('Microsoft.XMLHTTP');
        }
    }
}

function appear(content, value) {
    setFooter();
}

function updateChange(xhr) {
    if (xhr.readyState == 4) {
        if (xhr.status == 200) {
            var content = document.getElementById('content');
            content.innerHTML = xhr.responseText;
            appear(content);
        } else {
            alert('Error: ' + xhr.status + '!');
        }
    }
    
}

function handleChange(event) {
    var index, rel, links = document.getElementsByTagName('a'), path = event.path;
    if (path.substr(path.length - 1) != '/') {
        path += '/';
    }
    for (var i = 0, l, link; link = links[i]; i++) {
        index = link.rel.indexOf('?');
        rel = (index > -1) ? link.rel.substr(0, index) : link.rel;
        //link.className = (rel == path) ? 'selected' : '';
    }
    var parameters = '';
    for (var p in event.parameters) {
        parameters += '&' + p + '=' + event.parameters[p];
    }
    var xhr = getTransport();
    xhr.onreadystatechange = function() {
        updateChange(xhr);
    }
    xhr.open('get', 'datasource.php?swfaddress=' + event.path + parameters, true);
    xhr.send('');
    SWFAddress.setTitle(formatTitle(event.path));
}

SWFAddress.addEventListener(SWFAddressEvent.CHANGE, handleChange);