function chatbar() {
if (document.getElementById('chatbutton').innerHTML == "Apri") {
var adscode = '<!--\
\ngoogle_ad_client = "pub-4146350571663571"; \
\n/* GFCHAT 234x60, creato 20/10/09 */ \
\ngoogle_ad_slot = "9777262774"; \
\ngoogle_ad_width = 234; \
\ngoogle_ad_height = 60; \
\n//--> ';
document.getElementById('chatads').style.visibility = 'visible';
document.getElementById('chatad').innerHTML = adscode;
document.getElementById('cboxdiv').style.visibility = 'visible';
document.getElementById('chatbutton').innerHTML = 'Chiudi';
document.getElementById('gfchatcbox').style.zIndex = '10';
}
else {
document.getElementById('cboxdiv').style.visibility = 'hidden';
document.getElementById('chatads').style.visibility = 'hidden';
document.getElementById('chatad').innerHTML = '';
document.getElementById('chatbutton').innerHTML = 'Apri';
document.getElementById('gfchatcbox').style.zIndex = '-1';
}
}