// Preload images
if (document.images) {
	preload_image_object = new Image();
	// set image url
	image_url = new Array();
	image_url[0] = "../images/header_home.jpg";
	image_url[1] = "../images/header_night.jpg";
	image_url[2] = "../images/header_security.jpg";
	image_url[3] = "../images/header_features.jpg";
	image_url[4] = "../images/header_guestbath.jpg";
	image_url[5] = "../images/header_master.jpg";
	image_url[6] = "../images/header_neighbourhood.jpg";
	image_url[7] = "../images/header_views.jpg";
	image_url[8] = "../images/header_contact.jpg";
	image_url[9] = "../images/header_features.jpg";

   var i = 0;
   for(i=0; i<=9; i++) 
	 preload_image_object.src = image_url[i];
}