1 files changed, 18 insertions, 8 deletions

diff --git a/libs/jqplot/plugins/jqplot.canvasAxisTickRenderer.js b/libs/jqplot/plugins/jqplot.canvasAxisTickRenderer.js
index 8688f71aea..227bbc8a8d 100644
--- a/libs/jqplot/plugins/jqplot.canvasAxisTickRenderer.js
+++ b/libs/jqplot/plugins/jqplot.canvasAxisTickRenderer.js
@@ -49,10 +49,10 @@
         // tick mark on the axis.  One of 'inside', 'outside', 'cross', '' or null.
         this.mark = 'outside';
         // prop: showMark
-        // wether or not to show the mark on the axis.
+        // whether or not to show the mark on the axis.
         this.showMark = true;
         // prop: showGridline
-        // wether or not to draw the gridline on the grid at this tick.
+        // whether or not to draw the gridline on the grid at this tick.
         this.showGridline = true;
         // prop: isMinorTick
         // if this is a minor tick.
@@ -65,10 +65,10 @@
         // will be stoked above and below axis, so total length will be twice this.
         this.markSize = 4;
         // prop: show
-        // wether or not to show the tick (mark and label).
+        // whether or not to show the tick (mark and label).
         this.show = true;
         // prop: showLabel
-        // wether or not to show the label.
+        // whether or not to show the label.
         this.showLabel = true;
         // prop: labelPosition
         // 'auto', 'start', 'middle' or 'end'.
@@ -180,6 +180,16 @@
             return w;
         }
     };
+
+    // return top.
+    $.jqplot.CanvasAxisTickRenderer.prototype.getTop = function(ctx) {
+        if (this._elem) {
+         return this._elem.position().top;
+        }
+        else {
+            return null;
+        }
+    };
     
     $.jqplot.CanvasAxisTickRenderer.prototype.getAngleRad = function() {
         var a = this.angle * Math.PI/180;
@@ -225,13 +235,13 @@
         elem.style.height = h;
         elem.style.textAlign = 'left';
         elem.style.position = 'absolute';
-		
-		elem = plot.canvasManager.initCanvas(elem);
-		
+
+        elem = plot.canvasManager.initCanvas(elem);
+
         this._elem = $(elem);
         this._elem.css(this._styles);
         this._elem.addClass('jqplot-'+this.axis+'-tick');
-		
+
         elem = null;
         return this._elem;
     };