var window_status = 0;
 
 function showLoginWindow(){
    
	var window_name = 'pop_down_form';
	
	if (window_status == 0) {
		new Effect.Move(window_name, {
			x: 345,
			y: 92,
			mode: 'absolute'
		});
		window_status = 1;
	}
	else {
		new Effect.Move(window_name, {
			x: 345,
			y: 0,
			mode: 'absolute'
		});
		window_status = 0;
	}
 }