+ * Update the list of annotations and redraw the chart.
+ */
+Dygraph.prototype.setAnnotations = function(ann, suppressDraw) {
+ this.annotations_ = ann;
+ this.layout_.setAnnotations(this.annotations_);
+ if (!suppressDraw) {
+ this.drawGraph_(this.rawData_);
+ }
+};
+
+/**
+ * Return the list of annotations.
+ */
+Dygraph.prototype.annotations = function() {
+ return this.annotations_;
+};
+
+Dygraph.addAnnotationRule = function() {
+ if (Dygraph.addedAnnotationCSS) return;
+
+ var mysheet;
+ if (document.styleSheets.length > 0) {
+ mysheet = document.styleSheets[0];
+ } else {
+ var styleSheetElement = document.createElement("style");
+ styleSheetElement.type = "text/css";
+ document.getElementsByTagName("head")[0].appendChild(styleSheetElement);
+ for(i = 0; i < document.styleSheets.length; i++) {
+ if (document.styleSheets[i].disabled) continue;
+ mysheet = document.styleSheets[i];
+ }
+ }
+
+ var rule = "border: 1px solid black; " +
+ "background-color: white; " +
+ "text-align: center;";
+ if (mysheet.insertRule) { // Firefox
+ mysheet.insertRule(".dygraphDefaultAnnotation { " + rule + " }", 0);
+ } else if (mysheet.addRule) { // IE
+ mysheet.addRule(".dygraphDefaultAnnotation", rule);
+ }
+
+ Dygraph.addedAnnotationCSS = true;
+}
+
+/**