var intCurrentSlide = 1;
var idTimer = 0;
var intPosition1 = 0;
var intPosition2 = 0;
if (window.addEventListener) window.addEventListener("load", startSlideShow, false);
else if (window.attachEvent) window.attachEvent("onload", startSlideShow);
function startSlideShow() {
	idTimer = setInterval("showSlide()", 7000);
}
function showSlide(num) {
	var obj1 = document.getElementById("slide" + intCurrentSlide);
	var intNextSlide = (num) ? num : intCurrentSlide + 1;
	var obj2 = document.getElementById("slide" + intNextSlide);
	if (!obj2) {intNextSlide = 1; obj2 = document.getElementById("slide1");}
	if (intCurrentSlide != intNextSlide) {
	    var objIndicator = document.getElementById("indicator" + intCurrentSlide);
	    if (objIndicator) objIndicator.className = "indicator";
		intCurrentSlide = intNextSlide;
		obj1.style.left = "0px";
		obj1.style.top = "0px";
		obj1.style.display = "block";
		intPosition1 = 0;
		obj2.style.left = "630px";
		obj2.style.top = "0px";
		obj2.style.display = "block";
		intPosition2 = 630;
		slideLeft(obj1, obj2);
	}
}
function slideLeft(obj1, obj2) {
	var delta = Math.min(30, intPosition2);
	intPosition1 -= delta;
	intPosition2 -= delta;
	obj1.style.left = intPosition1 + "px";
	obj2.style.left = intPosition2 + "px";
	if (intPosition2 > 0) setTimeout(function(){slideLeft(obj1, obj2)}, 30);
	else {
	    var objIndicator = document.getElementById("indicator" + intCurrentSlide);
	    if (objIndicator) objIndicator.className = "selected indicator";
	}
}