/* ------------------------------------------------------------------
	 STYLE SWITCHER
  ------------------------------------------------------------------ */
  function changeStyle(forcedNewStyle) {
	 
	 if (forcedNewStyle) { var newStyle = forcedNewStyle; }
	 else                { var newStyle = "big";          }
	 
	 if (!forcedNewStyle) {
		// controllo se c'e' gia' il cookie
		var oldStyleInCookie = readCookie("style");
		if(oldStyleInCookie == "big")          { newStyle = "normal"; }
		else if (oldStyleInCookie == "normal") { newStyle = "big";    }
		else                                   { newStyle = "normal"; }
	 }
  
	 createCookie("style", newStyle, 1); // validita' del cookie: 1 ora
  
	 if (newStyle == "big") { $("body").addClass("big");    }
	 else                   { $("body").removeClass("big"); }
  
	 $("#footer_change_style").removeClass("normal");
	 $("#footer_change_style").removeClass("big");
	 $("#footer_change_style").addClass(newStyle);
	 
	 initScrollLayers();   // e' necessario renderizzare nuovamente le scrollbars
	 
	 
  }
  
  function createCookie(name,value,hours) {
	  if (hours) {
		  var date = new Date();
		  date.setTime(date.getTime()+(hours*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;
}






/* ------------------------------------------------------------------
   MENU DI NAVIGAZIONE
------------------------------------------------------------------ */
var lockMenu       = false;
var currentMenu1st = false;

var currentMenu1st = "";
function activateMenu(clickedObj, forcedNewStatus, followLink) {

  // se il menu non e' presente esco
  if (!$("#navmenu").attr("id")) {
    return true;  
  }
   
  if ($(clickedObj).attr("href") != "javascript:void(0);" && $(clickedObj).attr("followlink") != "false" && followLink != "no") {
     document.location.href = $(clickedObj).attr("href");
  }
  
  if ($(clickedObj).hasClass("liv1"))      { var clickedLev = "liv1"; }
  else if ($(clickedObj).hasClass("liv2")) { var clickedLev = "liv2"; }
  else if ($(clickedObj).hasClass("liv3")) { var clickedLev = "liv3"; }
  
  if (!forcedNewStatus) {
    if ($(clickedObj).hasClass("on"))        { var clickedStatus = "on";  var newStatus = "off"; }
    else if ($(clickedObj).hasClass("off"))  { var clickedStatus = "off"; var newStatus = "on";  }
  }
  else {
    if (forcedNewStatus == "on")        { var clickedStatus = "off"; var newStatus = "on";   }
    else if (forcedNewStatus == "off")  { var clickedStatus = "on";  var newStatus = "off";  }
  }
  
  if (clickedLev == "liv1") { currentMenu1st = $(clickedObj).attr("id"); }
  
  // toggle class
  $(clickedObj).removeClass(clickedStatus);
  $(clickedObj).addClass(newStatus);
  if (newStatus == "on" && clickedLev == "liv1" && $(clickedObj).attr("id") == currentMenu1st) {
    $(clickedObj).css("background-position","0 -40px");
  }
  else if (newStatus == "off" && clickedLev == "liv1" && $(clickedObj).attr("id") == currentMenu1st) {
    $(clickedObj).css("background-position","0 0");
  }
  
  $("#navmenu a."+clickedLev).not(clickedObj).removeClass("on");
  $("#navmenu a."+clickedLev).not(clickedObj).addClass("off");
    
  // toggle children of selected item
  $(clickedObj).parent().children().not(clickedObj).slideToggle("fast");
  
  // close brothers
  $(clickedObj).parent().siblings().children().not("."+clickedLev).slideUp("fast");
  $(clickedObj).parent().siblings().children().css("background-position","0 0");
  
  // se sto forzando l"apertura (caricamento di pagina) apro anche i genitori
  if (forcedNewStatus == "on") {
     for (var i = 0; i < $(clickedObj).parent().parent().parent().children().length; i++) {
        if(
            $($(clickedObj).parent().parent().parent().children()[i]).hasClass("liv2") ||
            $($(clickedObj).parent().parent().parent().children()[i]).hasClass("liv1")
        ) {
           activateMenu($($(clickedObj).parent().parent().parent().children()[i]),"on","no");
        }
     }   
  }

}

function menuOver(obj) {
  if (currentMenu1st != $(obj).attr("id")) {
    $(obj).css("background-position","0 -20px");  
  }
}
function menuOut(obj) {
  if (currentMenu1st != $(obj).attr("id")) {
    $(obj).css("background-position","0 0"); 
  }
}

function fixIE6flicker() {
	try {
    document.execCommand("BackgroundImageCache", false, true);
   } catch(err) {}
}



/* ------------------------------------------------------------------
// BACKGROUND FIX
------------------------------------------------------------------ */
function fixBackground() {
  if (parseInt(navigator.appVersion)>3) {
    if (navigator.appName=="Netscape" || navigator.appName=="Opera") {
      winW = window.innerWidth;
      winH = window.innerHeight;
    }
    if (navigator.appName.indexOf("Microsoft")!=-1) {
      winW = document.body.offsetWidth;
      winH = document.body.offsetHeight;
    }
  }
  
  if (winW < 990) {
    $("body").css("background-position","-145px 0");
  }
  else {
    $("body").css("background-position","center top");
  }
}
window.onresize = function () { fixBackground(); }



/* ------------------------------------------------------------------
// SCROLLABLE LAYERS
------------------------------------------------------------------ */
var scrollableLayersCnt = 0;
function initScrollLayers() {
  for (var i = 0; i < scrollableLayersCnt; i++) {
    if($("#WN_"+i).attr("id") && $("#LYR_"+i).attr("id")) { 
      if ($.browser.msie) { // explorer bug fix!
        document.getElementById("LYR_"+i).innerHTML = document.getElementById("LYR_"+i).innerHTML;
      }
      var wndo = new dw_scrollObj("WN_"+i, "LYR_"+i);
      wndo.setUpScrollbar("DRAGBAR_"+i, "TRACK_"+i, "v", 1, 1);
      dw_scrollObj.GeckoTableBugFix("WN_"+i); 
    }
  }
}




/* ------------------------------------------------------------------
// CAMBIO LINGUA
------------------------------------------------------------------ */
var currentUrl  = document.location.href;
var currentLang = getCurrentLang();

function changeLang() {
  if (currentLang == "en-us") { 
    var newUrl = currentUrl.replace(/\/en-us\//i, "/it-it/");
    newUrl = newUrl.replace(/\/pages\//i, "/Pagine/");
  }
  else if (currentLang == "it-it") { 
    var newUrl = currentUrl.replace(/\/it-it\//i, "/en-us/");
    newUrl = newUrl.replace(/\/pagine\//i, "/Pages/");
  }
  document.location.href = newUrl;
}
function getCurrentLang() {
  
  if(currentUrl.search(/\/it-it\//i)>0) { return ("it-it"); }
  if(currentUrl.search(/\/en-us\//i)>0) { return ("en-us"); }

  return ("it-it");   // default: it
}
function renderLangButtons() {
  if (currentLang == "it-it") {
    $("#footer_lang_it").removeClass("off");  
    $("#footer_lang_it").addClass("on");
    $("#footer_lang_en").removeClass("on");  
    $("#footer_lang_en").addClass("off");  
    $("#footer_lang_en").attr("href","javascript:changeLang();");
  }
  else if (currentLang == "en-us") {
    $("#footer_lang_en").removeClass("off");  
    $("#footer_lang_en").addClass("on");
    $("#footer_lang_it").removeClass("on");  
    $("#footer_lang_it").addClass("off");  
    $("#footer_lang_it").attr("href","javascript:changeLang();");
  }
}



/* ------------------------------------------------------------------
// BACKGROUND IMAGE
------------------------------------------------------------------ */
var backgroundImgUrl;
function renderBackgroundImage() {
  if (backgroundImgUrl) {
     $("body").css("background-image","url('"+backgroundImgUrl+"')");
  }  
}


/* ------------------------------------------------------------------
// STAMPA
------------------------------------------------------------------ */
var pageVersion = "";
function printPage() {
  if(currentUrl.search(/p=true/i)>0) { return false; }
  if (currentUrl.search(/\?/i)>0)
   window.open(document.location.href+'&p=true');
  else
   window.open(document.location.href+'?p=true');
}

function renderPrintableVersion() {
  $(".hold").removeAttr("style");
  $(".hold").removeClass("hold");
  $(".wn").removeAttr("style");
  $(".wn").removeClass("wn");
  $(".lyr").removeAttr("style");
  $(".lyr").removeClass("lyr");
  $(".scrollbar").css("display","none");
}




/* ------------------------------------------------------------------
// DOCUMENT READY
------------------------------------------------------------------ */
$(document).ready(function() {
   
  // ----------------------------------------------------------------
  // navmenu 

    // assegno a tutti i tag <a> senza link il link javascript:void(0);
    $("#navmenu a").not($("#navmenu a[href]")).attr({href: "javascript:void(0);"})
    
    // assegno la classe "last" all'ultima voce di terzo livello di ogni gruppo
    $("#navmenu a.liv1").each(function(i) {
      $("#"+$(this).attr("id")).parent().find(".liv2:last").addClass("last");
    });
      
    // evento click -> attiva la voce cliccata
    $("#navmenu a").click(function() {
      activateMenu(this);
      return false;  // disable links
    });
  
    // roll-over
    $("#navmenu a.liv1").mouseover(function() {
      menuOver(this);
    });
  
    // roll-out
    $("#navmenu a.liv1").mouseout(function() {
      menuOut(this);
    });

    // espando il menu corrente (l'unica voce con class="on")
    if (!$.browser.opera) { // opera renderizza male il menu se non lo attivo al window.onload
      activateMenu($("#navmenu a.on")[0],"on","no");
    }
    
    fixIE6flicker();
    
  // ----------------------------------------------------------------


  // ----------------------------------------------------------------
  // scrollable layers
    
    jQuery.each($(".wn"), function(i,obj) {
      $(obj).attr("id","WN_"+i);  
      scrollableLayersCnt++;
    } )
    jQuery.each($(".lyr"), function(i,obj) {
      $(obj).attr("id","LYR_"+i);  
    } )
    jQuery.each($(".dragbar"), function(i,obj) {
      $(obj).attr("id","DRAGBAR_"+i);  
    } )
    jQuery.each($(".track"), function(i,obj) {
      $(obj).attr("id","TRACK_"+i);  
    } )
    initScrollLayers();
  // ----------------------------------------------------------------
  
  
  // ----------------------------------------------------------------
  // style switch
    var oldStyleInCookie = readCookie("style");
    if(oldStyleInCookie != "") { changeStyle(oldStyleInCookie); }
  // ----------------------------------------------------------------

  
  // ----------------------------------------------------------------
  // pulsanti per cambio lingua
    renderLangButtons();
  // ----------------------------------------------------------------
  
  
  // ----------------------------------------------------------------
  // background image
    renderBackgroundImage();
  // ----------------------------------------------------------------
  
  
  // ----------------------------------------------------------------
  // background image
    if (pageVersion == "print") { renderPrintableVersion(); }
  // ----------------------------------------------------------------
})