From 8cac270234a3d2b014fdd701593beb9c72f61595 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Thu, 24 Jan 2013 16:31:56 +0100
Subject: [PATCH] Use + rather than Number for string to number conversion

---
 src/ol/renderer/webgl/webglmaprenderer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/renderer/webgl/webglmaprenderer.js b/src/ol/renderer/webgl/webglmaprenderer.js
index 926a581c0b..a1eefb7326 100644
--- a/src/ol/renderer/webgl/webglmaprenderer.js
+++ b/src/ol/renderer/webgl/webglmaprenderer.js
@@ -321,7 +321,7 @@ ol.renderer.webgl.Map.prototype.expireCache_ = function(map, frameState) {
     textureCacheEntry = /** @type {?ol.renderer.webgl.TextureCacheEntry} */
         (this.textureCache_.peekLast());
     if (goog.isNull(textureCacheEntry)) {
-      if (Number(this.textureCache_.peekLastKey()) == frameState.time) {
+      if (+this.textureCache_.peekLastKey() == frameState.time) {
         break;
       } else {
         --this.textureCacheFrameMarkerCount_;