var c = 1;
			var arrImages = ["/img/kameleonttikuorot/tunnus_kelt.jpg", "/img/kameleonttikuorot/tunnus_mus.jpg", "/img/kameleonttikuorot/tunnus_oran.jpg", 
											"/img/kameleonttikuorot/tunnus_pun.jpg", "/img/kameleonttikuorot/tunnus_turk.jpg", "/img/kameleonttikuorot/tunnus_vih.jpg"];
			function disp_img(w)
				 {
				 if (c == 7)
						{
						c = 1;
						}
				 var img_src = arrImages[c-1];
				 var myDiv = document.getElementById("navi-header");
				 myDiv.style.backgroundImage = "url(" + img_src + ")";
				 c++;
				 }
			function startLoop() {
				t = setInterval("disp_img(c)", 1000);
			}
			function startImagePreloader() {
				var ip = new ImagePreloader(arrImages, startLoop);
			}
			dojo.addOnLoad(startImagePreloader);