var frame=null;
var time=FADE;
var delay=FADE;
var transition=false;
var initialized=false;
var reverse=false;
var mainTimer=null;
var fadeTimer=null;
window.onload=init;

function start(){
var ss=document.getElementById('ss');
	if(ss==null||ss.children==null){
		return;
	}

	if(ss.children.length==2&&frame!=ss.firstChild){
		return;
	}
	ss.filters[0].apply();

	if(frame.style){
		frame.style.display="none";
	}
	ss.filters[0].play(duration=time);
	fadeTimer=window.setTimeout(finish,time*1000);
	transition=true;
}

function finish(){
	var ss=document.getElementById('ss');
	if(ss==null||ss.children==null){
		return;
	}
	transition=false;

	if(reverse){
		frame=frame.previousSibling;
			if(frame==null||(IS_INTRO!='no'&&frame==ss.firstChild)){
				frame=ss.lastChild;
			}
			reverse=false;
		}
		
	else{
		frame=frame.nextSibling;
			if(frame==null){
				frame=ss.firstChild;
				if(IS_INTRO!='no'){
					frame=frame.nextSibling;
				}
			}
		}
	parseDelay();ss.filters[0].apply();
	
	if(frame.style){
		frame.style.display="block";
	}
	ss.filters[0].play(duration=time);
	mainTimer=window.setTimeout(start,time*1000+delay);
	time=FADE;
}

function pause(){
	if(!transition){
		window.clearTimeout(fadeTimer);
		window.clearTimeout(mainTimer);
		mainTimer=window.setTimeout(start,(FADE*1000+delay));
	}
}

function init(){
	var ss=document.getElementById('ss');
		if(ss==null||ss.children==null){
			return;
		}
	frame=ss.firstChild;parseDelay();
	ss.onmousemove=pause;
	mainTimer=window.setTimeout(start,delay);
	
		if(typeof(Home)!="undefined"){
			Home();}
		}

function next(){
	if(!transition){
		window.clearTimeout(fadeTimer);
		window.clearTimeout(mainTimer);
		time=0;start();
	}
}

function prev(){
	if(!transition){
		window.clearTimeout(fadeTimer);
		window.clearTimeout(mainTimer);
		reverse=true;
		time=0;
		start();
	}
}

function parseDelay(){
	try{
		delay=parseInt(frame.delay);
	}
	catch(ex){
		delay=DELAY;
	}
	if(delay<FADE){
		delay=DELAY;
	}
}