diff --git a/examples/axes-multiple/index.html b/examples/axes-multiple/index.html
index 4c7c68c..da168fa 100644
--- a/examples/axes-multiple/index.html
+++ b/examples/axes-multiple/index.html
@@ -32,7 +32,10 @@
 					position: position,
 					tickFormatter: euroFormatter
 				} ],
-				legend: { position: "sw" }
+				legend: { position: "sw" },
+				grid: {
+					borderWidth: { top: 0, bottom: 1, left: 0, right: 0}
+				}
 			});
 		}
 
diff --git a/jquery.flot.js b/jquery.flot.js
index 0e21a68..9ce07c7 100644
--- a/jquery.flot.js
+++ b/jquery.flot.js
@@ -1395,13 +1395,15 @@ Licensed under the MIT license.
             if ($.inArray(axis, samePosition) == samePosition.length - 1)
                 axisMargin = 0; // outermost
 
+            // Determine whether the axis is the first (innermost) on its side
+
+            innermost = $.inArray(axis, $.grep(all, function (a) {
+                return a && a.reserveSpace;
+            })) == 0;
+
             // determine tick length - if we're innermost, we can use "full"
-            if (tickLength == null) {
-                var sameDirection = $.grep(all, function (a) {
-                    return a && a.reserveSpace;
-                });
 
-                innermost = $.inArray(axis, sameDirection) == 0;
+            if (tickLength == null) {
                 if (innermost)
                     tickLength = "full";
                 else