function Login(){
var done=0;
var username=document.forms[0].txtUsername.value;
username=username.toLowerCase();
var password=document.forms[0].txtPassword.value;
password=password.toLowerCase();
if (username=="isitxmas83" && password=="isitxmas83") { window.location="http://www.isisurgery.com/TxMasISI.htm"; done=1; }
if (done==0) { alert("Invalid login!"); }
}