var s5_open = 0;

function show_login() {
	
	
	if (s5_open == 0) {
		document.getElementById('s5_dropbox').style.display = 'block';
		s5_open = 1;
	} else {
		document.getElementById('s5_dropbox').style.display = 'none';
		s5_open = 0;
	}

}