+} // WSR_getElementsByClassName()
+
+/**
+ * javascript based photo preloading
+ */
+function preloadPhotos(image_url) {
+
+ var i;
+ var timeout = 1000;
+ var waiting = 100;
+ var counting;
+
+ lbImg = WSR_getElementsByClassName(document,"img","thumb");
+ if(lbImg != undefined) {
+ for(i=0;i<lbImg.length;i++){
+ lbImg[i].src=image_url[i];
+ // to not bomb the server with requests, give the page some time
+ // to load the images one by one. if a image exceeds the timeout,
+ // the next image will be loaded.
+ if(lbImg[i].complete != undefined && lbImg[i].complete != true) {
+ counting = 0;
+ while(lbImg[i].complete != true && counting < timeout) {
+ window.setTimeout("noop()", waiting);
+ counting+=waiting;
+ }
+ }
+ }
+ }
+
+} // preloadPhotos()
+
+/* a function that does nothing */
+function noop() {}
+
+/**
+ * start slideshow
+ */
+function startSlideShow(srv_webpath)
+{
+ if(srv_webpath != undefined)
+ web_path = srv_webpath;
+ else
+ web_path = '';
+
+ if(!sliding) {
+ HTML_AJAX.grab(encodeURI(web_path + '/rpc.php?action=reset_slideshow'));
+ nextSlide();
+ sliding = setInterval("nextSlide()", sliding_time*1000);
+ document.getElementById('stop_ico').src = web_path + "/resources/32_stop.png";
+ }
+ else {
+ clearInterval(sliding);
+ sliding = 0;
+ document.getElementById('stop_ico').src = web_path + "/resources/32_play.png";
+ }
+
+} // startSlideShow()
+
+/**
+ * switch to next slide
+ */
+function nextSlide()
+{
+ var next_img = HTML_AJAX.grab(encodeURI(web_path + '/rpc.php?action=get_next_slideshow_img'));
+ document.getElementById('slide_img').src = next_img;
+
+} // nextSlide()
+
+/**
+ * switch to previous slide
+ */
+function prevSlide()
+{
+ var prev_img = HTML_AJAX.grab(encodeURI(web_path + '/rpc.php?action=get_prev_slideshow_img'));
+ document.getElementById('slide_img').src = prev_img;
+
+} // prevSlide()
+
+/**
+ * interrupt slide show
+ */
+function pauseSlideShow()
+{
+ if(!sliding_paused) {
+ sliding_paused = 1;
+ clearInterval(sliding);
+ document.getElementById('pause_ico').src = web_path + "/resources/32_play.png";
+ }
+ else {
+ sliding_paused = 0;
+ sliding = setInterval("nextSlide()", sliding_time*1000);
+ document.getElementById('pause_ico').src = web_path + "/resources/32_pause.png";
+ }
+
+} // pauseSlideShow()
+
+/**
+ * start auto-browse
+ */
+function startAutoBrowse()
+{
+ if(!autobrowse) {
+ autoBrowse();
+ autobrowse = setInterval("autoBrowse()", 5000);
+ }
+ else {
+ clearInterval(autobrowse);
+ autobrowse = 0;
+ document.getElementById('autobrowse_ico').src = web_path + "/resources/16_play.png";
+ }
+
+} // startAutoBrowser()
+
+/**
+ * auto-browsing
+ */
+function autoBrowse()
+{
+ if(document.getElementById('next_link')) {
+ var next_link = document.getElementById('next_link').href;
+ window.location.href = next_link;
+ document.getElementById('autobrowse_ico').src = web_path + "/resources/16_pause.png";
+ }
+ /* we have reached the last photo */
+ else {
+ if(ab_ico = document.getElementById('autobrowse_ico'))
+ ab_ico.src = web_path + "/resources/16_play.png";
+ clearInterval(autobrowse);
+ }
+
+} // autoBrowse()
+
+/**
+ * initiate slider to modify slide-switching-speed
+ */
+function initSlider()
+{
+ var sliderEl = document.getElementById ? document.getElementById("slider-1") : null;
+ var inputEl = document.forms[0]["slider-input-1"];
+ var s = new Slider(sliderEl, inputEl);
+ s.setMinimum(1);
+ s.setMaximum(10);
+ s.setValue(sliding_time);
+ document.getElementById("current_slide_time").innerHTML = sliding_time + "s Interval";
+ s.onchange = function () {
+ sliding_time = s.getValue();
+ document.getElementById("current_slide_time").innerHTML = sliding_time + "s Interval";
+ if(!sliding_paused && sliding) {
+ clearInterval(sliding);
+ sliding = setInterval("nextSlide()", sliding_time*1000);
+ }
+ };
+ window.onresize = function () {
+ s.recalculate();
+ };