// requires mootools core
var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;

window.addEvent('load', function(){
	$('slideshow_plugin').setStyle('overflow', 'hidden');
	$('slideshow_plugin').setStyle('height', $('slideshow_plugin').getElement('img').height);
	setTimeout(slideshow_plugin_requestImages, 5000);
});
function slideshow_plugin_requestImages() {
	var imgSrc = $('slideshow_plugin').getElement('img').get('src');
	var req = new Request.HTML({
		method: 'get',
		url: '/js/xfadebanner.inc.php',
		data: { 'img': imgSrc },
		update: $('slideshow_plugin'),
		evalscripts: 'true',
		onComplete: function(){ 
			slideshow_plugin_init();
		}
	}).send();
}

function slideshow_plugin_init() {
	imgs = $("xfade").getElements("img");
	for(i=0;i<imgs.length;i++) {
		imgs[i].style.position = 'absolute'; // images overlay
		if(i==0) {
			imgs[i].xOpacity = 1;
		} else {
			imgs[i].style.display = 'none';
			imgs[i].xOpacity = 0;
		}
	}
	
	setTimeout(slideshow_plugin_fade,5000);
}

function slideshow_plugin_fade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;

	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.01; 
	nOpacity+=.01;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if(cOpacity<0) {
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(slideshow_plugin_fade,5000);
	} else {
		setTimeout(slideshow_plugin_fade,10);
	}
	
	function setOpacity(obj) {
		if(obj.xOpacity>1) {
			obj.xOpacity = 1;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}
	
}