var cycle_interval;
var start_gallery = function() {
  
  var current_image = 1;
  
  cycle_interval = setInterval(function() {
    $.backstretch("assets/images/backgrounds/"+current_image+".jpg", {
  		hideUntilReady: true,
  		speed: 500,
  		horizontalAlign: "center",
  		verticalAlign: "center"
  	});
  	current_image = current_image + 1;
  	if (current_image > 5) current_image = 1;
  }, 5000);
	
};

var stop_gallery = function() {
  clearInterval(cycle_interval);
};