function start_slideshow(start_frame, end_frame, delay) {
	setTimeout(switch_slides(start_frame,start_frame,end_frame, delay), delay);
}

function switch_slides(frame, start_frame, end_frame, delay) {
	return (function() {
    	Effect.Fade('slideshow' + frame);
        if (frame == end_frame) { frame = start_frame; } else { frame = frame + 1; }
        setTimeout("Effect.Appear('slideshow" + frame + "');", 0);
        setTimeout(switch_slides(frame, start_frame, end_frame, delay), delay + 0);
    });
}

function doslides() {
	start_slideshow(1, 2, 5000);
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

Event.observe(window, "load", function() { doslides() });

if ( readCookie("PG_DERM_HOME_POPUP") == "show" ) {
	//createCookie("PG_DERM_HOME_POPUP", "hide", 30);
	
	Lightbox.init();
	showArticle();
}

function showArticle() {
	Lightbox.showBoxByID('antiAgingArticle');
}