diff --git a/lib/ace/layer/marker.js b/lib/ace/layer/marker.js
index 30f777ed..13be784a 100644
--- a/lib/ace/layer/marker.js
+++ b/lib/ace/layer/marker.js
@@ -61,6 +61,7 @@ var Marker = function(parentEl) {
         this.markers[id] = {
             range : range,
             type : type || "line",
+            renderer: typeof type == "function" ? type : null,
             clazz : clazz
         };
 
@@ -90,7 +91,12 @@ var Marker = function(parentEl) {
 
             range = range.toScreenRange(this.session);
 
-            if (range.isMultiLine()) {
+            if (marker.renderer) {
+                var top = this.$getTop(range.start.row, config);
+                var left = Math.round(range.start.column * config.characterWidth);        
+                marker.renderer(html, range, left, top, config);
+            }
+            else if (range.isMultiLine()) {
                 if (marker.type == "text") {
                     this.drawTextMarker(html, range, marker.clazz, config);
                 } else {