var nativeSetInterval = window.setInterval;

_setInterval = {};

window.setInterval = function(process, delay) {
	var entry;

	if(typeof process == 'string') {
		entry = new _setInterval.Entry(function(){eval(process);}, delay);
	}
	else if(typeof process == 'function') {
		entry = new _setInterval.Entry(process, delay);
	}
	else {
		throw Error('第一引数が不正です。');
	}

	var id = _setInterval.queue.length;
	_setInterval.queue[id] = entry;
	return id;
};

window.clearInterval = function(id) {
	if(_setInterval.queue[id]==null){
		
	}else{
		_setInterval.queue[id].loop = function(){};
	}
	
};

_setInterval.queue = [];

_setInterval.Entry = function(process, delay) {
	this.process = process;
	this.delay   = delay;
	this.time    = 0;
};

_setInterval.Entry.prototype.loop = function(time) {
	this.time += time;
	while(this.time >= this.delay) {
		this.process();
		this.time -= this.delay
	}
};

_setInterval.lastTime = new Date().getTime();

nativeSetInterval(function() {
	
	var time = new Date().getTime();
	
	var subTime =  time - _setInterval.lastTime;

	_setInterval.lastTime = time;

	for(var i = 0; i < _setInterval.queue.length; i++) {
		if(_setInterval.queue[i]==null){
			
		}else{
			_setInterval.queue[i].loop(subTime);
		}
	}

}, 10);