<!-- Preload Billboard Graphics

image1 = new Image();
image1.src = "/images/healthcare/billboard/features/feature-1.jpg";
image2 = new Image();
image2.src = "/images/healthcare/billboard/features/feature-2.jpg";
image3 = new Image();
image3.src = "/images/healthcare/billboard/features/feature-3.jpg";
image4 = new Image();
image4.src = "/images/healthcare/billboard/features/feature-4.jpg";
image5 = new Image();
image5.src = "/images/healthcare/billboard/navigation/nav-1-on.jpg";
image6 = new Image();
image6.src = "/images/healthcare/billboard/navigation/nav-1-off.jpg";
image7 = new Image();
image7.src = "/images/healthcare/billboard/navigation/nav-2-on.jpg";
image8 = new Image();
image8.src = "/images/healthcare/billboard/navigation/nav-2-off.jpg";
image9 = new Image();
image9.src = "/images/healthcare/billboard/navigation/nav-3-on.jpg";
image10 = new Image();
image10.src = "/images/healthcare/billboard/navigation/nav-3-off.jpg";

-->