var sliding 			= 0;
var slideTime 			= '';
//altezza del tab che si apre fino a 220
var panelHeight 		= 220;
//quanto tempo ci mette il tab per aprirsi
var effectDuration 		= 300;
//tempo in cui il tab rimane aperto
var idleTime 			= 500;

// Set is sliding value
function setSliding(a_ISliding){
	sliding = a_ISliding;
}

// Get is sliding value
function getSliding(){
	return sliding;
}

// Carry out accordian styled effect
function accordion() {
	var eldown = this.getNext();
	//  If element is visible do nothing
	if ($('visible') == this) {
			return false;
	}
	if ($('visible')) {
			if( getSliding() == 1 ){
					return false;
			}
			var elup = $('visible').getNext();
			setSliding( 1 );
			parellelSlide( elup, eldown );
			$('visible').id = '';
	}
	else{
			setSliding( 1 );
			singleSlide( eldown );
	}
	this.id = 'visible';
}

function getElementsByClassNameFix(tag, className) {
		// This method of populating is used as Safari does use getElementsByClassName()
		var elements = [];
		var safariElements = $A(document.getElementsByTagName(tag));
		safariElements.each(function(safariElements){
			if(!safariElements.className.match(className)) return;
			elements.push(safariElements);
		});
		return elements;
}

// Setup accordian initial state
function init() {
		var bodyPanels 	= getElementsByClassNameFix('div', 'panel_body');
		var panels 		= getElementsByClassNameFix('div', 'panel_container');
		var noPanels 	= panels.length;
		var percentageWidth = 100 / noPanels;
		var position 				= 0;
		
		//  Loop through body panels and panels applying required styles and adding event listeners
		for (i = 0; i < bodyPanels.length; i++) {
			bodyPanels[i].style.height = '0px';
			panels[i].style.position = 'absolute';
			panels[i].style.left = position + 'px';
			position += 300;
		
			panels[i].style.width = '290px';
			$(panels[i].getElementsByTagName('h3')[0]).addEvent('mouseover', accordion);
			//$(panels[i].getElementsByTagName('h3')[0]).addEvent('mousemove', accordion);
				
			$('panel1-body').addEvent('mouseleave',resetIdle);
			$('panel2-body').addEvent('mouseleave',resetIdle);
			$('panel3-body').addEvent('mouseleave',resetIdle);
			//$(document.body).addEvent('mousemove', resetIdle);
			//position += percentageWidth;
		}
		//if( $('visible') ){
		//  Se marco un h3 come visible mi apre il corrispondente tab in avvio in automatico
			//var vis = $('visible').parentNode.id+'-body';
			//$(vis).style.height = '200px';
		//}
		//setIdle();
	
}

//function scroll() {
	//	var scroll1 = new Fx.Scroll('contenitore', {
	//		wait: false,
	//		duration: 2500,
	//		offset: {'x': 0, 'y': 0},
	//		transition: Fx.Transitions.Bounce.easeOut
	//	});
	//	scroll1.toElement('prodotto4');
//}
// Next sibling method to work around firefox issues
function getNextSibling(startBrother){
	var endBrother=startBrother.nextSibling;
  while(endBrother.nodeType!=1){
    endBrother = endBrother.nextSibling;
  }
  return endBrother;
}

function parellelSlide( elup, eldown ){
	myEffects = new Fx.Styles(elup, {duration: effectDuration, transition: Fx.Transitions.linear});
	myEffects.custom({
		 'height': [panelHeight, 0]
	});
	
	
	myEffects1 = new Fx.Styles(eldown, {duration: effectDuration, transition: Fx.Transitions.linear, onComplete: function() { setSliding( 0 ); }});
	myEffects1.custom({
		 'height': [0, panelHeight]
	});
	
}

function singleSlide( eldown ){
	myEffects = new Fx.Styles(eldown, {duration: effectDuration, transition: Fx.Transitions.linear, onComplete: function() { setSliding( 0 ); }});
	myEffects.custom({
		 'height': [0, panelHeight]
	});
	
}

function resetTabs(){
	var resetEl = $('visible').getNext();
	
	setSliding( 1 );
	myEffects = new Fx.Styles(resetEl, {duration: effectDuration, transition: Fx.Transitions.linear, onComplete: function() { setSliding( 0 ); }});
	myEffects.custom({
		 'height': [panelHeight, 0]
	});
	$('visible').id = '';
}

function resetIdle(){
		window.clearTimeout( slideTime );
		setIdle()
}

function setIdle(){
	if( $('visible') ){
		slideTime = window.setTimeout( "resetTabs()", idleTime );
	}
}

window.addEvent('load', init);