function room(url){ 
window.open(url, "room", "width=545,height=700,menubar=no,location=no,status=no,toolbar=no,scrollbars=yes"); 
} 


function top(url){ 
window.open(url, "room", "width=545,height=620,menubar=no,location=no,status=no,toolbar=no,scrollbars=yes"); 
}