function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

window.addEventListener?window.addEventListener('load',so_init,false):window.attachEvent('onload',so_init);

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

function so_init()
{
	if(!d.getElementById || !d.createElement)return;

	css = d.createElement('link');
	css.setAttribute('href','slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

	//imgs = d.getElementById('slideshow').getElementsByTagName('img');
	imgs = d.getElementById('slideshow').getElementsByTagName('img');
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

	setTimeout(so_xfade,2000);
}

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

	cOpacity-=.05;
	nOpacity+=.05;

	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(so_xfade,2000);
	}
	else
	{
		setTimeout(so_xfade,50);
	}

	function setOpacity(obj)
	{
		if(obj.xOpacity>.99)
		{
			obj.xOpacity = .99;
			return;
		}

		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = 'alpha(opacity=' + (obj.xOpacity*100) + ')';
	}
}
	
if (document.layers)
   document.write("<LINK HREF='../css/n4.css' REL='stylesheet' TYPE='text/css'>")
      else
         if (document.all)
            document.write("<LINK HREF='../css/ie.css' REL='stylesheet' TYPE='text/css'>")

         else
            if (!document.all && document.getElementById)
               document.write("<LINK HREF='../css/mz.css' REL='stylesheet' TYPE='text/css'>")
            else
               document.write("<LINK HREF='../css/xx.css' REL='stylesheet' TYPE='text/css'>")

function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}


addEvent(window, 'load', initForm);

var highlight_array = new Array();

function initForm(){
	initializeFocus();
	initAutoResize();
	ifInstructs();
	browserDetect();
	checkPaypal();
	checkMechanicalTurk();
}

// for radio and checkboxes, they have to be cleared manually, so they are added to the
// global array highlight_array so we dont have to loop through the dom every time.
function initializeFocus(){
	fields = getElementsByClassName(document, "*", "field");
	for(i = 0; i < fields.length; i++) {
		if(fields[i].type == 'radio' || fields[i].type == 'checkbox' || fields[i].type == 'file') {
			fields[i].onclick = function(){clearSafariRadios(); addClassName(this.parentNode.parentNode, "focused", true)};
			fields[i].onfocus = function(){clearSafariRadios(); addClassName(this.parentNode.parentNode, "focused", true)};
			highlight_array.splice(highlight_array.length,0,fields[i]);
		}
		if(fields[i].className.match('addr')){
			fields[i].onfocus = function(){clearSafariRadios();addClassName(this.parentNode.parentNode.parentNode, "focused", true)};
			fields[i].onblur = function(){removeClassName(this.parentNode.parentNode.parentNode, "focused")};
		}
		else {
			fields[i].onfocus = function(){clearSafariRadios();addClassName(this.parentNode.parentNode, "focused", true)};
			fields[i].onblur = function(){removeClassName(this.parentNode.parentNode, "focused")};
		}
	}
}

function initAutoResize() {
	//var par = window.location.href.toString();
	//parent.location = par+'#height='+document.body.offsetHeight;
}

function clearSafariRadios() {
	for(var i = 0; i < highlight_array.length; i++) {
		if(highlight_array[i].parentNode) {
			removeClassName(highlight_array[i].parentNode.parentNode, 'focused');
		}
	}
}

function ifInstructs(){
	var container = document.getElementById('public');
	if(container){
		removeClassName(container,'noI');
		var instructs = getElementsByClassName(document,"*","instruct");
		if((container.offsetWidth <= 450) || (instructs == '')){
			addClassName(container,'noI',true);
		}
	}
}

function browserDetect(){
	var detect = navigator.userAgent.toLowerCase();
	var container = document.getElementsByTagName('html');
	if(detect.indexOf('safari') + 1){
		addClassName(container[0], 'safari', true);
	}
	if(detect.indexOf('firefox') + 1){
		addClassName(container[0], 'firefox', true);
	}
}

function checkPaypal() {
	if(document.getElementById('merchant')) {
		document.getElementById('merchantMessage').innerHTML = 'Your order is being processed. Please wait while the page redirects to the merchant checkout.';
		document.getElementById('merchantButton').style.display = 'none';
		document.getElementById('merchant').submit();
	}
}

function checkMechanicalTurk() {
	if(document.getElementById('mechanicalTurk')) {
		document.getElementById('merchantMessage').innerHTML = 'Your submission is being processed. You will be redirected shortly.';
		document.getElementById('merchantButton').style.display = 'none';
		document.getElementById('mechanicalTurk').submit();
	}
}

/*--------------------------------------------------------------------------*/

//http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];		
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}	
	}
	return (arrReturnElements)
}

//http://www.bigbold.com/snippets/posts/show/2630
function addClassName(objElement, strClass, blnMayAlreadyExist){
   if ( objElement.className ){
      var arrList = objElement.className.split(' ');
      if ( blnMayAlreadyExist ){
         var strClassUpper = strClass.toUpperCase();
         for ( var i = 0; i < arrList.length; i++ ){
            if ( arrList[i].toUpperCase() == strClassUpper ){
               arrList.splice(i, 1);
               i--;
             }
           }
      }
      arrList[arrList.length] = strClass;
      objElement.className = arrList.join(' ');
   }
   else{  
      objElement.className = strClass;
      }
}

//http://www.bigbold.com/snippets/posts/show/2630
function removeClassName(objElement, strClass){
   if ( objElement.className ){
      var arrList = objElement.className.split(' ');
      var strClassUpper = strClass.toUpperCase();
      for ( var i = 0; i < arrList.length; i++ ){
         if ( arrList[i].toUpperCase() == strClassUpper ){
            arrList.splice(i, 1);
            i--;
         }
      }
      objElement.className = arrList.join(' ');
   }
}

//http://ejohn.org/projects/flexible-javascript-events/
function addEvent( obj, type, fn ) {
  if ( obj.attachEvent ) {
    obj["e"+type+fn] = fn;
    obj[type+fn] = function() { obj["e"+type+fn]( window.event ) };
    obj.attachEvent( "on"+type, obj[type+fn] );
  } 
  else{
    obj.addEventListener( type, fn, false );	
  }
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' Inserire un indirizzo e-mail valido.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' Inserire un numero di telefono valido.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' è obbligatorio.\n'; }
  } if (errors) alert('Sono stati riscontrati i seguenti errori:\n'+errors);
  document.MM_returnValue = (errors == '');
}