var lightbox_toggle;

function lightbox() {

	
	// elements
	var lightboxElement = $('overlay');
	var copy = $('whatCopy');
	var element = $('what-is-this-site');
		
	if ( lightbox_toggle==true ) {

		var reverseFadeToBlack = new Fx.Style(lightboxElement, 'opacity').start(.8,0);
		var reverseFadeToOn = new Fx.Style(copy, 'opacity').start(1,0);
		
		lightbox_toggle = false;
	}
		
	else {	
		// window
		var windowSize = window.getSize();
	
		// dimensions 
		var coordinates = element.getCoordinates();
	
		// actions
		copy.setStyles({
			top: coordinates.top + 28,
			left: coordinates.left - 355
		});
		lightboxElement.setStyles({
			height: windowSize.scrollSize.y,
			width: windowSize.scrollSize.x
		});
	
	
		lightboxElement.setOpacity(0);
		lightboxElement.setStyle('display', 'block');
		copy.setOpacity(0);
		copy.setStyle('display', 'block');
		
		// styles
		var fadeToBlack = new Fx.Style(lightboxElement, 'opacity').start(0,.8);
		var fadeToOn = new Fx.Style(copy, 'opacity').start(0,1);
		
		lightbox_toggle = true;	
		
	}
}