/**
 * Joints the parts of an email address
 * @param name {string}
 * @param server {string}
 * @param domain {string}
 * @param text {mixed}
 * @returns {string} jointed eMail address
 */
function createMail (name, server, domain, text) {
    
    var email = name+'@'+server+'.'+domain;
    var output = email;
    if (text === true) {
        output = '<a href="mailto:'+email+'">'+email+'</a>';
    } else if (text !== '')  {
        output = '<a href="mailto:'+email+'">'+text+'</a>';
    }
    document.write(output);
}