Set up a resize event listener to call map.updateSize() as necessary.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@262 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Map.js

@@ -85,10 +85,14 @@ OpenLayers.Map.prototype = {
 
         this.events = new OpenLayers.Events(this, div, this.EVENT_TYPES);
 
+        this.updateSize();
+        // update the internal size register whenever the div is resized
+        this.events.register("resize", this, updateSize);
+
         this.layers = [];
         
         if (!this.controls) {
-        this.controls = [];
+            this.controls = [];
             this.addControl(new OpenLayers.Control.MouseDefaults(), null );
             this.addControl(new OpenLayers.Control.PanZoom(),
                             new OpenLayers.Pixel(4,4) );
@@ -96,8 +100,6 @@ OpenLayers.Map.prototype = {
 
         this.popups = new Array();
 
-        this.updateSize();
-
         // always call map.destroy()
         Event.observe(window, 'unload', 
             this.destroy.bindAsEventListener(this));