room3_files = Array(4);
	room3_files[0] = "images/room3.jpg";
	room3_files[1] = "images/room3a.jpg";
	room3_files[2] = "images/room3b.jpg";
	room3_files[3] = "images/room3c.jpg";

	room2_files = Array(5);
	room2_files[0] = "images/room2.jpg";
	room2_files[1] = "images/room2a.jpg";
	room2_files[2] = "images/room2b.jpg";
	room2_files[3] = "images/room2c.jpg";
	room2_files[4] = "images/room2d.jpg";

	room1_files = Array(6);
	room1_files[0] = "images/room1.jpg";
	room1_files[1] = "images/room1a.jpg";
	room1_files[2] = "images/room1b.jpg";
	room1_files[3] = "images/room1c.jpg";
	room1_files[4] = "images/room1d.jpg";
	room1_files[5] = "images/room1e.jpg";

//rotateHeader("header_link","header_image",file_names,file_link);

var slide_index= 0;
	function forwardSlide(image_id,files){
		
		//var raw_number=Math.random()*9;
		//var random_integer=Math.round(raw_number);
		slide_index++;
		if (slide_index == files.length){
			slide_index = 0;		
		}
		y = document.getElementById(image_id);
		y.src = files[slide_index];
		
		}
		function reverseSlide(image_id,files){
		
		slide_index--;
		if (slide_index < 0){
			slide_index = files.length-1;		
		}
		y = document.getElementById(image_id);
		y.src = files[slide_index];
		
		}