// Menu image flip
if (document.images) 
	{	imagelistings_a = new Image
		imagelistings_b = new Image
		imageagents_a = new Image
		imageagents_b = new Image
		imageabout_a = new Image
		imageabout_b = new Image
		imagecontact_a = new Image
		imagecontact_b = new Image
		
		imagelistings_a.src = 'img/listings_a.png'
		imagelistings_b.src = 'img/listings_b.png'
		imageagents_a.src = 'img/agents_a.png'
		imageagents_b.src = 'img/agents_b.png'
		imageabout_a.src = 'img/about_a.png'
		imageabout_b.src = 'img/about_b.png'
		imagecontact_a.src = 'img/contact_a.png'
		imagecontact_b.src = 'img/contact_b.png'
    }