function aprichat() {
Chat_Url = 'http://www.risorseinternet.it/myservices/chat.php';
ChatOpt1 = 'uid=1450&channel=Living_on_a_cloud_chat&sitename=Living on a cloud';
ChatOpt2 = 'bgcolor=000000&textcolor=FFFFFF&chatcolor=CCCCCC';
ChatOpt3 = 'chattextcolor=333333&fontsize=12&fontface=verdana';
window.open(Chat_Url + '?' + ChatOpt1 + '&' + ChatOpt2 + '&' + ChatOpt3);
}