IE8- compatibility in doEventListeners

For IE8- : use attachEvent/detachEvent instead of addEventListener/removeEventListener

javascript_implementation/jsColor.js

@@ -95,7 +95,8 @@
 				return new initConfig.klass(initConfig);
 			},
 			doEventListeners = function(elm, multiple, off) {
-				var onOff = off ? 'removeEventListener' : 'addEventListener',
+				var ie8 = !document.addEventListener,
+				    onOff = off ? (ie8?'detachEvent':'removeEventListener') : (ie8?'attachEvent':'addEventListener'),
 					focusListener = function(e) {
 						var input = this,
 							position = window.ColorPicker.getOrigin(input),
@@ -233,4 +234,4 @@
 				(options.secure  ? '; secure'                        : '');
 		}
 	};
-})(this);
+})(this);