tock.min.js

function Tock(options){this.go=false;this.interval=options.interval||10;this.countdown=options.countdown||false;this.final_time=0;this.callback=options.callback;this.complete=options.complete;}
Tock.prototype.reset=function(){if(this.countdown){return false;}
this.stop();this.start_time=0;this.time=0;this.elapsed='0.0';};Tock.prototype.start=function(time){if(this.countdown){this._startCountdown(time);}else{this._startTimer();}};Tock.prototype.stop=function(){this.go=false;this.final_time=(Date.now()-this.start_time);window.clearTimeout(this.timeout);};Tock.prototype.lap=function(){if(this.go){var now;if(this.countdown){now=this.duration_ms-(Date.now()-this.start_time);}else{now=(Date.now()-this.start_time);}
return now;}
return this.final_time;};Tock.prototype.msToTime=function(ms){var milliseconds=(ms%1000).toString(),seconds=Math.floor((ms/1000)%60).toString(),minutes=Math.floor((ms/(60*1000))%60).toString();if(milliseconds<=0){return"00:00.000";}
if(milliseconds.length===1){milliseconds='00'+milliseconds;}else if(milliseconds.length===2){milliseconds='0'+milliseconds;}
if(seconds.length===1){seconds='0'+seconds;}
if(minutes.length===1){minutes='0'+minutes;}
return minutes+":"+seconds+"."+milliseconds;};Tock.prototype.timeToMS=function(time){var ms=new Date(time).getTime();if(!ms){var time_split=time.split(':'),ms;ms=parseInt(time_split[0],10)*60000;if(time_split.length>1){ms+=parseInt(time_split[1],10)*1000;}
if(time_split.length>2){ms+=parseInt(time_split[2],10);}}
return ms;};Tock.prototype._tick=function(){this.time+=this.interval;this.elapsed=Math.floor(this.time/this.interval)/10;if(Math.round(this.elapsed)===this.elapsed){this.elapsed+='.0';}
var t=this,diff=(Date.now()-this.start_time)-this.time;if(this.callback!==undefined){this.callback(this);}
if(this.countdown&&(this.duration_ms-this.time<0)){this.final_time=0;this.go=false;this.complete();}
if(this.go){this.timeout=window.setTimeout(function(){t._tick();},(this.interval-diff));}};Tock.prototype._startCountdown=function(duration){this.duration_ms=duration;this.start_time=Date.now();this.end_time=this.start_time+this.duration;this.time=0;this.elapsed='0.0';this.go=true;var t=this;this.timeout=window.setTimeout(function(){t._tick();},100);};Tock.prototype._startTimer=function(){this.start_time=Date.now();this.time=0;this.elapsed='0.0';this.go=true;var t=this;this.timeout=window.setTimeout(function(){t._tick();},100);};