function ChangeTab(Id)
			{

				document.getElementById("bn_photos").style.display = "none";
				document.getElementById("bn_videos").style.display = "none";
				document.getElementById("bn_brochure").style.display = "none";
				document.getElementById("bn_floor_site_plans").style.display = "none";
				document.getElementById("bn_price_list").style.display = "none";
				
				document.getElementById("bn_photostab").src = 'website_graphics/bn_photos.jpg';
				document.getElementById("bn_videostab").src = 'website_graphics/bn_videos.jpg';
				document.getElementById("bn_brochuretab").src = 'website_graphics/bn_brochure.jpg';
				document.getElementById("bn_floor_site_planstab").src = 'website_graphics/bn_floor_site_plans.jpg';
				document.getElementById("bn_price_listtab").src = 'website_graphics/bn_price_list.jpg';
				
				document.getElementById(Id).style.display = "block";
				document.getElementById(Id+"Tab").src = 'website_graphics/' + Id + '_h.jpg';
			}