// SET THIS VARIABLE FOR DELAY, 1000 = 1 SECOND
var delayLength = 4000;
var working=false;
function doMove(panelWidth, tooFar) {
  if(working==true){
    return;
  }
  working=true;
	var leftValue = $("#mover").css("left");
	
	// Fix for IE
	if (leftValue == "auto") { leftValue = 0; };
	
	var movement = parseFloat(leftValue, 10) - panelWidth;
	
	if (movement == tooFar) {
    $("#mover").animate({
      "left": 0
    }, function() {
      $(".slide img").animate({
        "top": 0
      }, function () {working=false;});
    });
	}
	else {
		/*$(".slide img").animate({
			"top": -200
		}, function() {
			$("#mover").animate({
				"left": movement
			}, function() {
				$(".slide img").animate({
					"top": 0
				});
			});
		});*/
    $("#mover").animate({
      "left": movement
    }, function() {
      $(".slide img").animate({
        "top": 0
      }, function () {working=false;});
    });
	}
}

var $slide1;

var panelWidth;
var panelPaddingLeft;
var panelPaddingRight;

var numPanels;
var tooFar;
var totalMoverwidth;

$(function(){
	
  $slide1 = $("#slide-1");

	panelWidth = $slide1.css("width");
	panelPaddingLeft = $slide1.css("paddingLeft");
	panelPaddingRight = $slide1.css("paddingRight");

	panelWidth = parseFloat(panelWidth, 10);
	panelPaddingLeft = parseFloat(panelPaddingLeft, 10);
	panelPaddingRight = parseFloat(panelPaddingRight, 10);

	panelWidth = panelWidth + panelPaddingLeft + panelPaddingRight;
	
	numPanels = $(".slide").length;
	tooFar = -(panelWidth * numPanels);
	totalMoverwidth = numPanels * panelWidth;
	
	$("#mover").css("width", totalMoverwidth);

	$("#slider").append('<a href="#" id="slider-stopper">Detener</a>');

	sliderIntervalID = setInterval(function(){
		doMove(panelWidth, tooFar);
	}, delayLength);
	
	$("#slider-stopper").click(function(){
		if ($(this).text() == "Detener") {
			clearInterval(sliderIntervalID);
		 	$(this).text("Empezar");
		}
		else {
			sliderIntervalID = setInterval(function(){
				doMove(panelWidth, tooFar);
			}, delayLength);
		 	$(this).text("Detener");
		}
		 
	});

});