Merge pull request #398 from mikeprimm/master

IE8 doesn't have indexOf, if you can believe that....

web/js/dynmaputils.js

@@ -10,6 +10,40 @@ var DynmapProjection = L.Class.extend({
 	}
 });
 
+if (!Array.prototype.indexOf) {
+	    Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
+	        "use strict";
+	        if (this === void 0 || this === null) {
+	            throw new TypeError();
+	        }
+	        var t = Object(this);
+	        var len = t.length >>> 0;
+	        if (len === 0) {
+	            return -1;
+	        }
+	        var n = 0;
+	        if (arguments.length > 0) {
+	            n = Number(arguments[1]);
+	            if (n !== n) { // shortcut for verifying if it's NaN
+	                n = 0;
+	            } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+	                n = (n > 0 || -1) * Math.floor(Math.abs(n));
+	            }
+	        }
+	        if (n >= len) {
+	            return -1;
+	        }
+	        var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
+	        for (; k < len; k++) {
+	            if (k in t && t[k] === searchElement) {
+	                return k;
+	            }
+	        }
+	        return -1;
+	    }
+}
+
+	
 var DynmapTileLayer = L.TileLayer.extend({
 	_currentzoom: undefined,
 	getProjection: function() {