function Login(){
var done=0;
var username=document.login.username.value;
username=username.toLowerCase();
var password=document.login.password.value;
password=password.toLowerCase();
if (username=="broker" && password=="broker") { window.location="logan/index_brok.php"; done=1; }
if (username=="loss" && password=="loss") { window.location="logan/index_client.php"; done=1; }

if (done==0) { alert("Invalid login!"); }
}