function 1ogin() {
loggedin=false;
username="";
password="";
username=username.toLowerCase();
password=password.toLowerCase();

if (username=="vta" && password=="test") { 
	loggedin=true;
	window.open('index.htm','','fullscreen');
	}

if (username=="zhangde" && password=="akoh") { 
	loggedin=true;
	window.open('zdps2.html','','fullscreen');
	}

if (username=="jintai" && password=="low") { 
	loggedin=true;
	window.open('jintai3.html','','fullscreen');
	}
}