/**
 * 
 * Simple text timer js class by Epsilon
 * 
 * (Original version by unknown French programmer)
 * 
 * Input options defaults:
 *   targetDate: "" 
 *   nowDate: ""
 *   countActive: true
 *   countStepper: -1
 *   leadingZero: true
 *   dstprefix: ''
 */
function eTextTimer2(opts) {

	this.calcage = function(secs, num1, num2) {
		s = ((Math.floor(secs/num1))%num2).toString();
		if (this.options[0].leadingZero && s.length < 2)
			s = "0" + s;
		return s;
	}
	
	this.calcageNLZ = function(secs, num1, num2) {
		return ((Math.floor(secs/num1))%num2).toString();
	}

	this.countBack = function() {
		
		this.secs --;
		secs = this.secs;
		
		if (secs < 0) {
			secs = 0;
		}
		
		pfx = this.options[0].dstprefix;
		
		$('#' + pfx + 'd').html(this.calcageNLZ(secs, 86400, 100000));
		$('#' + pfx + 'h').html(this.calcage(secs, 3600, 24));
		$('#' + pfx + 'm').html(this.calcage(secs, 60, 60));
		$('#' + pfx + 's').html(this.calcage(secs, 1, 60));

		if (this.options[0].countActive) {
			setTimeout(
					(function(obj){ 
						return function() {
							obj.countBack();
						};
			        })(this), 
			          this.setTimeOutPeriod
			        );
		}
	};
	
	// Initializer
	this.options = new Array({
		targetDate: "12/31/2030 5:00 AM",
		nowDate: "",
		countActive: true,
		countStepper: -1,
		leadingZero: true,
		dstprefix: ""
	});
		
	for (var key in opts) {
		this.options[0][key] = opts[key];
	}
	
	this.options[0].countStepper = Math.ceil(this.options[0].countStepper);
	if (this.options[0].countStepper == 0) {
		this.options[0].countActive = false;			
	}
	
	this.setTimeOutPeriod = (Math.abs(this.options[0].countStepper)-1)*1000 + 990;
	var dthen = new Date(this.options[0].targetDate);
	var dnow = new Date(this.options[0].nowDate);
	if (this.options[0].countStepper > 0) {
		ddiff = new Date(dnow - dthen);
	} else {
		ddiff = new Date(dthen - dnow);
	}
	this.secs = Math.floor(ddiff.valueOf() / 1000);
	this.countBack();
}