https://advego.com/js/jquery.timers.js

1jQuery.fn.extend({
2	everyTime: function(interval, label, fn, times, belay) {
3		return this.each(function() {
4			jQuery.timer.add(this, interval, label, fn, times, belay);
5		});
6	},
7	oneTime: function(interval, label, fn) {
8		return this.each(function() {
9			jQuery.timer.add(this, interval, label, fn, 1);
10		});
11	},
12	stopTime: function(label, fn) {
13		return this.each(function() {
14			jQuery.timer.remove(this, label, fn);
15		});
16	}
17});
18
19jQuery.extend({
20	timer: {
21		guid: 1,
22		global: {},
23		regex: /^([0-9]+)\s*(.*s)?$/,
24		powers: {
25			// Yeah this is major overkill...
26			'ms': 1,
27			'cs': 10,
28			'ds': 100,
29			's': 1000,
30			'das': 10000,
31			'hs': 100000,
32			'ks': 1000000
33		},
34		timeParse: function(value) {
35			if (value == undefined || value == null)
36				return null;
37			var result = this.regex.exec(jQuery.trim(value.toString()));
38			if (result[2]) {
39				var num = parseInt(result[1], 10);
40				var mult = this.powers[result[2]] || 1;
41				return num * mult;
42			} else {
43				return value;
44			}
45		},
46		add: function(element, interval, label, fn, times, belay) {
47			var counter = 0;
48			
49			if (jQuery.isFunction(label)) {
50				if (!times) 
51					times = fn;
52				fn = label;
53				label = interval;
54			}
55			
56			interval = jQuery.timer.timeParse(interval);
57
58			if (typeof interval != 'number' || isNaN(interval) || interval <= 0)
59				return;
60
61			if (times && times.constructor != Number) {
62				belay = !!times;
63				times = 0;
64			}
65			
66			times = times || 0;
67			belay = belay || false;
68			
69			if (!element.$timers) 
70				element.$timers = {};
71			
72			if (!element.$timers[label])
73				element.$timers[label] = {};
74			
75			fn.$timerID = fn.$timerID || this.guid++;
76			
77			var handler = function() {
78				if (belay && this.inProgress) 
79					return;
80				this.inProgress = true;
81				if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
82					jQuery.timer.remove(element, label, fn);
83				this.inProgress = false;
84			};
85			
86			handler.$timerID = fn.$timerID;
87			
88			if (!element.$timers[label][fn.$timerID]) 
89				element.$timers[label][fn.$timerID] = window.setInterval(handler,interval);
90			
91			if ( !this.global[label] )
92				this.global[label] = [];
93			this.global[label].push( element );
94			
95		},
96		remove: function(element, label, fn) {
97			var timers = element.$timers, ret;
98			
99			if ( timers ) {
100				
101				if (!label) {
102					for ( label in timers )
103						this.remove(element, label, fn);
104				} else if ( timers[label] ) {
105					if ( fn ) {
106						if ( fn.$timerID ) {
107							window.clearInterval(timers[label][fn.$timerID]);
108							delete timers[label][fn.$timerID];
109						}
110					} else {
111						for ( var fn in timers[label] ) {
112							window.clearInterval(timers[label][fn]);
113							delete timers[label][fn];
114						}
115					}
116					
117					for ( ret in timers[label] ) break;
118					if ( !ret ) {
119						ret = null;
120						delete timers[label];
121					}
122				}
123				
124				for ( ret in timers ) break;
125				if ( !ret ) 
126					element.$timers = null;
127			}
128		}
129	}
130});
131
132if (jQuery.browser.msie)
133	jQuery(window).one("unload", function() {
134		var global = jQuery.timer.global;
135		for ( var label in global ) {
136			var els = global[label], i = els.length;
137			while ( --i )
138				jQuery.timer.remove(els[i], label);
139		}
140	});
141