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=="helling" && password=="2127") { window.location="helling.html"; done=1; }
	if (username=="semop" && password=="alufast") { window.location="semoptel.html"; done=1; }
	if (username=="member3" && password=="password3") { window.location="page3.html"; done=1; }
    if (username=="member3" && password=="password3") { window.location="page3.html"; done=1; }
	if (done==0) { alert("Login invalide"); }
	}