function about_load() {
	var object = document.getElementById('main_overlay');	
	var myFx = new Fx.Tween(object);
	myFx.set('opacity', '0');
	object.style.display = "block";
		  
	var size = $("header1").getSize();
	document.getElementById("header1").style.left = -(size.x+30) +"px";
	object = document.getElementById("about2_wrapper");
	var myFx = new Fx.Tween(object);
	myFx.set('opacity', '0');
	object.style.display = "block";
	main_overlay_show();	
}
function main_overlay_show() {
	$(document.getElementById('main_overlay')).fade('in');
	timer =setTimeout("header()",500);
}
function main_overlay_hide() {
	var size = $("header1").getSize();
	var myEffect = new Fx.Morph('header1', {duration: 500});
	myEffect.start({
		'left': -size.x
	});
	for(var i =1; i<=8; i++) {
		var myEffect = new Fx.Morph('a'+i, {duration: 500});
		myEffect.start({
			'opacity': 0
		});
	}
	timer = setTimeout("fadeout()",500);
}
function fadeout() {

	$(document.getElementById('main_overlay')).fade('out');
	$(document.getElementById('about2_wrapper')).fade('out');	
}
function header() {
		var object = document.getElementById("header1");
		object.set('tween', {duration: '500'});
		object.tween('left', 0);
	
}
function undo() {
	main_overlay_hide() ;
}
function about1() {
	object = document.getElementById("main_overlay");
	object.set('tween', {duration: '1000'});
	object.tween('opacity',0);
	
	object = document.getElementById("about2_wrapper");
	object.set('tween', {duration: '1000'});
	object.tween('opacity',0);
}