diff --git a/src/dom/DomUtil.js b/src/dom/DomUtil.js
index 2224293d..5ad4d18c 100644
--- a/src/dom/DomUtil.js
+++ b/src/dom/DomUtil.js
@@ -241,44 +241,46 @@ L.DomUtil.TRANSITION_END =
 	var userSelectProperty = L.DomUtil.testProp(
 		['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
 
-	L.DomUtil.disableTextSelection = function () {
-		if (userSelectProperty) {
-			var style = document.documentElement.style;
-			this._userSelect = style[userSelectProperty];
-			style[userSelectProperty] = 'none';
-		} else {
-			L.DomEvent.on(window, 'selectstart', L.DomEvent.stop);
-		}
-	};
-
-	L.DomUtil.enableTextSelection = function () {
-		if (userSelectProperty) {
-			document.documentElement.style[userSelectProperty] = this._userSelect;
-			delete this._userSelect;
-		} else {
-			L.DomEvent.off(window, 'selectstart', L.DomEvent.stop);
-		}
-	};
-
 	var userDragProperty = L.DomUtil.testProp(
 		['userDrag', 'WebkitUserDrag', 'OUserDrag', 'MozUserDrag', 'msUserDrag']);
 
-	L.DomUtil.disableImageDrag = function () {
-		if (userDragProperty) {
-			var style = document.documentElement.style;
-			this._userDrag = style[userDragProperty];
-			style[userDragProperty] = 'none';
-		} else {
-			L.DomEvent.on(window, 'dragstart', L.DomEvent.stop);
-		}
-	};
+	L.extend(L.DomUtil, {
+		disableTextSelection: function () {
+			if (userSelectProperty) {
+				var style = document.documentElement.style;
+				this._userSelect = style[userSelectProperty];
+				style[userSelectProperty] = 'none';
+			} else {
+				L.DomEvent.on(window, 'selectstart', L.DomEvent.stop);
+			}
+		},
 
-	L.DomUtil.enableImageDrag = function () {
-		if (userDragProperty) {
-			document.documentElement.style[userDragProperty] = this._userDrag;
-			delete this._userDrag;
-		} else {
-			L.DomEvent.off(window, 'dragstart', L.DomEvent.stop);
+		enableTextSelection: function () {
+			if (userSelectProperty) {
+				document.documentElement.style[userSelectProperty] = this._userSelect;
+				delete this._userSelect;
+			} else {
+				L.DomEvent.off(window, 'selectstart', L.DomEvent.stop);
+			}
+		},
+
+		disableImageDrag: function () {
+			if (userDragProperty) {
+				var style = document.documentElement.style;
+				this._userDrag = style[userDragProperty];
+				style[userDragProperty] = 'none';
+			} else {
+				L.DomEvent.on(window, 'dragstart', L.DomEvent.stop);
+			}
+		},
+
+		enableImageDrag: function () {
+			if (userDragProperty) {
+				document.documentElement.style[userDragProperty] = this._userDrag;
+				delete this._userDrag;
+			} else {
+				L.DomEvent.off(window, 'dragstart', L.DomEvent.stop);
+			}
 		}
-	};
+	});
 })();