From bf075e63e01aac6010712327196faf663393f482 Mon Sep 17 00:00:00 2001
From: Schuyler Erle <schuyler@nocat.net>
Date: Thu, 5 Oct 2006 20:34:21 +0000
Subject: [PATCH] Add Layer.setZIndex so that layers can add behavior when
 their div's z-index changes. Also, change Map.setLayerZIndex() to use it.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1611 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Layer.js | 8 ++++++++
 lib/OpenLayers/Map.js   | 4 ++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lib/OpenLayers/Layer.js b/lib/OpenLayers/Layer.js
index 6683fb6249..9120c1a888 100644
--- a/lib/OpenLayers/Layer.js
+++ b/lib/OpenLayers/Layer.js
@@ -516,6 +516,14 @@ OpenLayers.Layer.prototype = {
         }
     },
 
+    /**
+    * @param {int} zIdx
+    * @private
+    */    
+    setZIndex: function (zIdx) {
+        this.div.style.zIndex = zIdx;
+    },
+
     /** @final @type String */
     CLASS_NAME: "OpenLayers.Layer"
 };
diff --git a/lib/OpenLayers/Map.js b/lib/OpenLayers/Map.js
index d7356402c1..3d27f8fb0d 100644
--- a/lib/OpenLayers/Map.js
+++ b/lib/OpenLayers/Map.js
@@ -261,9 +261,9 @@ OpenLayers.Map.prototype = {
     * @private
     */    
     setLayerZIndex: function (layer, zIdx) {
-        layer.div.style.zIndex = 
+        layer.setZIndex(
             this.Z_INDEX_BASE[layer.isBaseLayer ? 'BaseLayer' : 'Overlay']
-            + zIdx * 5;
+            + zIdx * 5 );
     },
 
     /**