// JavaScript Document
window.onload=rotatePictures;

// start with pictures 1 and 2 already loaded
var count = 3;
var imageCount = 17;

var left_timer_is_on=0;
var right_timer_is_on=0;
var interval = 6000;

function rotatePictures() {
//window.alert('Halloo! rotatePictures()');

var lt = setTimeout("rotateLeftPicture()",interval/2);
//var rt = setTimeout("rotateRightPicture()",interval);
}

function rotateLeftPicture(){
//window.alert('Halloo! left');
//window.alert('left_timer_is_on: ' + left_timer_is_on);
	if (!left_timer_is_on)
  	{
  	left_timer_is_on=1;
	//window.alert('Halloo! 2 left');
  	rotateLeft();
  	}
}

function rotateRightPicture(){
//window.alert('Halloo! right');

	if (!right_timer_is_on)
  	{
  	right_timer_is_on=1;
	//window.alert('Halloo! 2 right');
  	rotateRight();
  	}
}

function rotateLeft()
{
	var image = document.getElementById('center-left-img');
	image.setAttribute('src','Images/sqloop/sqloop' + count++ + '.jpg');
	image.setAttribute('alt','loop image' + count);
	if (count > imageCount) {
		count = count - imageCount;
	}
	//window.alert('Count(left): ' + count);
	lt=setTimeout("rotateLeft()",interval);
}

function rotateRight()
{
	var image = document.getElementById('center-right-img');
	image.setAttribute('src','Images/sqloop/sqloop' + count++ + '.jpg');
	image.setAttribute('alt','loop image ' + count);
	if (count > imageCount) {
		count = count - imageCount;
	}
	//window.alert('Count(right): ' + count);
	rt=setTimeout("rotateRight()",interval);
}