Add Sound to Chrome Notifications about icinga-multi-status

[RayMisterio]

+++ Update +++
I studied the source code and found the part where Chrome creates the notfication. So i added at the following lines in the icinga.js file. Also I created a sound folder in the "root-direcotry" of the Plugin to store the sounds.

The function icinga_notification(id, title, message, context) is modified as follows:

 else {
					// Send it
					if ($.inArray(id, notf_store) == -1) {
						// split the message String, to get the type of notification DOWN, WARNING or CRITICAL
						var splMess = message.split("(");
						var notf_type = splMess[1].split(" ");
						
						notf_store.push(id);
						chrome.notifications.create(id, { 'priority': 2, 'type': 'basic', 'iconUrl': 'img/icon_48.png', 'title': title, 'contextMessage': context , 'message': message }, function(id) { });
						
						// every notification-type gets its ownn sound
						
						if (notf_type[0] == 'CRITICAL'){
						var sound = new Audio('sound/critical.mp3');
						sound.play();
						}
						if (notf_type[0] == 'WARNING') {
							var sound = new Audio('sound/warning.mp3');
							sound.play();
						}
						if (notf_type[0] == 'DOWN') {
							var sound = new Audio('sound/down.mp3');
							sound.play();
						}
					}
				}