element.prototype.elementinview = function() {
	var rect = this.getboundingclientrect()
	var yinview = rect.top < window.innerheight && rect.bottom > 0
	var xinview = rect.left < window.innerwidth && rect.right > 0
	return yinview && xinview
}

var wormdigitalscroll = function(options) {
	var that = this,
		dqtime
	for (var i in options) this[i] = options[i]

	if (!this.el) {
		return false
	}

	// var strnum = parseint(this.el.innerhtml)
	var strnum = this.el.innerhtml
	var mc = strnum / this.time
	var start = false;

	function update(str) {
		that.el.innerhtml = str
	}

	function startnum() {
		if (that.el.elementinview() && !start) {
			start = true
			var starttimeout = new date().gettime()
			var time = setinterval(function() {
				dqtime = new date().gettime() - starttimeout
				if (dqtime >= that.time) {
					clearinterval(time)
					update(strnum)
					window.removeeventlistener('scroll', scroll, false)
				} else {
					var decimal = string(strnum).split('.')
					if (decimal.length > 1) {
						decimal = string(strnum).split('.')[1].length
					} else {
						decimal = 0
					}
					update((mc * dqtime).tofixed(decimal))
				}
			}, 0)
		}
	}

	function scroll() {
		startnum()
	}
	startnum()
	window.addeventlistener('scroll', scroll, false)
}

wormdigitalscroll.prototype = {
	el: null,
	time: 500
}




$(function () {
	numbox()

})

function numbox(){
	if($('.wel_02 ').length>0){
	    for (var i = 0; i < $('.wel_02  span').length; i++) {
	        new wormdigitalscroll({
	            el: $('.wel_02  span').eq(i).find('em').length > 0 ? $('.wel_02  span').eq(i).find('em').get(0) : $('.wel_02  span').eq(i).get(0),
	            time: 3000
	        })
	    }
    }
}