+
+ /** Cleanup data for responsive source-tag's */
+ for (i=0; i<settings.source.length; i++) {
+ if (!settings.source[i].min) settings.source[i].min = 0;
+ if (!settings.source[i].max) settings.source[i].max = Number.MAX_VALUE;
+ if (!settings.source[i].prefix) settings.source[i].prefix = '';
+ if (!settings.source[i].suffix) settings.source[i].suffix = '';
+ }
+
+ /** Add resize-event */
+ $(window).resize(function() {
+ clearTimeout(resize_timer);
+ resize_timer = setTimeout(recalculate_visible , settings.resize_timeout);
+ });
+
+ /** Fetch the JavaScript for Flash and schedule the initial fetch */
+ $.getScript(domain + settings.delivery + '/' + settings.fl, recalculate_visible);
+
+ }
+
+ function recalculate_visible() {
+
+ pagewidth = $(document).width();
+ if (settings.debug && console.debug)
+ console.debug('Scheduling recalculation of visible banners for width ' + pagewidth);
+ if (!rendering)
+ fetch_ads();
+
+ }
+
+ function fetch_ads() {
+
+ /** Guide rendering-process for early restarts */
+ rendering = true;
+
+ if (settings.debug && console.debug)
+ console.debug('Starting recalculation of visible banners for width ' + pagewidth);
+
+ var
+ name,
+ width,
+ i,
+ source_prefix = '',
+ source_suffix = '',
+ src = domain + settings.delivery + '/spc.php';
+
+ /** Order banners for all zones that were found on the page */
+ src += '?zones=';
+ for(id in slots) {
+ width =
+ is_pagewidth[id]
+ ? pagewidth
+ : Math.round($(slots[id]).parent().width());
+ visible[id] = width >= min_width[id] && width <= max_width[id];
+ if (visible[id]) {
+ if (!rendered[id]) {
+ queue.push(id);
+ src += escape(id + '=' + OA_zones[slots[id].id] + "|");
+ rendered[id] = true;
+ if (settings.debug && console.debug)
+ console.debug('Fetching banner ' + slots[id].id);
+ }
+ else {
+ /** Unhide already fetched visible banners */
+ if (settings.debug && console.debug)
+ console.debug('Unhiding already fetched banner ' + slots[id].id);
+ $(slots[id]).slideDown();
+ }
+ }
+ else {
+ /** Hide unvisible banners */
+ if (settings.debug && console.debug)
+ console.debug('Hiding banner ' + slots[id].id);
+ $(slots[id]).hide();
+ }
+ }