window.addEvent('domready', function(){
	
	if ($('reveal_link')) {
		
		var revealFx = new Fx.Tween($('bgoverlayspc'), {property:'opacity',duration:500,link:'cancel',fps:24});
		
		$('bgoverlayspc').setStyle('opacity',0);
		$('bgoverlayspc').setStyle('display','block');
		
		$('reveal_link').addEvent('click', function(e){
			revealFx.start(0,1);
			e.stop();
		});
		
		$('hidebgoverlay').addEvent('click', function(e){
			revealFx.start(1,0);
			e.stop();
		});
	}
	
});