/**
			 * Variable to keep track of images
			 *
			 * @var integer
			 **/
			var currentImage = 1;

			/**
			 * showImage
			 *
			 * Shows image img in the the fullsize image location
			 *
			 * @param string url (without directory structure, always assumes fotos/)
			 * @param integer id
			 * @return void
			 * @todo: place in external .js
			 * @todo: always use absolute url
			 **/
			function showImage(url, id) {
				document.getElementById("fullImage").src = "/fotos/" + url;
				currentImage = id;
			}

			/**
			 * next
			 *
			 * Shows the next image
			 *
			 * @return void
			 **/
			function next() {
				currentImage++;
				if (!document.getElementById("image" + currentImage) ) {
					currentImage = 1;
				}
				document.getElementById("image" + currentImage).onclick();
			}

			/**
			 * previous
			 *
			 * Shows the previous
			 *
			 * @return void
			 **/
			function previous() {
				currentImage--;
				if (currentImage == 0) {
					var maxId = 1;
					while (document.getElementById("image" + maxId) ) {
						maxId++;
					}
					currentImage = maxId - 1;
				}
				document.getElementById("image" + currentImage).onclick();
			}

			function swapImage(imgN,imgU){
				if(document.images)document.images[imgN].src=imgU;
			}