clean up

spotify_timer.js

javascript:(
	function() {

		/* Settings */
		var hours = 0, 
			minutes = 0, 
			seconds = 0;
		/* End Settings*/

        function getPlayButton() {
			var activeSectionId = document.getElementById("main").getElementsByClassName("active")[0].getAttribute("id");
			var panel = document.getElementById(activeSectionId).getElementsByClassName("front").length > 0 
				? document.getElementById(activeSectionId).getElementsByClassName("front")[0] 
				: document.getElementById(activeSectionId).getElementsByClassName("root")[0];
			var frame = panel.childNodes[0];
			var buttons = frame.contentDocument.getElementsByClassName("button button-primary button-play");
			if(buttons.length <= 0) {
				buttons = frame.contentDocument.getElementsByClassName("btn btn-small btn-icon btn-primary btn-play");
			}
			return buttons[0];
		}

		function start() {
			var time = (seconds + (minutes + hours * 60) * 60) * 1000;
		    var interval = setInterval(function () {
				/* TODO: Show timer to user */

				time -= 1000;
				if(time <= 0) {
					var button = getPlayButton();
					if(button != undefined) {
						button.click();
					}
					clearInterval(interval);
				}
			}, 1000)
		}
		start();
	}())