var g_borderStyle = '1px solid #000080';

// Determine browser and version.

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();

// Global object to hold drag information.

var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {

  var el;
  var x, y;

  // If an element id was given, find it. Otherwise use the element being
  // clicked on.

  if (id)
    dragObj.elNode = document.getElementById(id);
  else {
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
    if (browser.isNS)
      dragObj.elNode = event.target;

    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
  }

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Save starting positions of cursor and element.

  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

  dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
}

function dragGo(event) {

  var x, y;

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Stop capturing mousemove and mouseup events.

  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
}

function liteWAC(obj)
{
	var siteMap = document.getElementById("CMS_WAC_SiteMap");
	
	obj.style.backgroundColor='#FFEEC2'; 	
	if (siteMap.style.display == "inline" && obj.cells(0).style.backgroundColor == '#ffeec2') {
		//sono nel caso di rettangolino selezionato
		obj.cells(0).style.borderRight=''; 
	} else {
		obj.cells(0).style.borderLeft = g_borderStyle; 
		obj.cells(0).style.borderBottom = g_borderStyle;
		obj.cells(0).style.borderTop = g_borderStyle;
	}
	obj.cells(1).style.borderRight= g_borderStyle; 
	obj.cells(1).style.borderBottom= g_borderStyle;
	obj.cells(1).style.borderTop= g_borderStyle;	
}

function unliteWAC(obj)
{
	var siteMap = document.getElementById("CMS_WAC_SiteMap");
	
	obj.style.backgroundColor=''; 	
	if (siteMap.style.display == "inline" && obj.cells(0).style.backgroundColor == '#ffeec2' ) {
		obj.cells(0).style.borderRight= g_borderStyle; 
	} else {
		obj.cells(0).style.border=''; 
	}
	obj.cells(1).style.border=''; 	
}

// Sitemap

function toggleSiteMapVisibility(obj) {	
	var siteMap = document.getElementById("CMS_WAC_SiteMap");
	
	if (siteMap != "null") 	{
		if (siteMap.style.display == "inline") {
			siteMap.style.display = "none";			
			obj.cells(0).style.backgroundColor=''; 
			SetCookie("openTree", "closed");
		} else {
			siteMap.style.display = "inline";
			obj.cells(0).style.backgroundColor='#FFEEC2'; 
			SetCookie("openTree", "open");
		}
	}
}

function SetCookie(cookieName, cookieValue) {
  document.cookie = cookieName + '=' + cookieValue + ';path=/';
}

function GetCookie(cookieName) {
  if (cookieName.indexOf('=')==-1)
    cookieName += '='

  var strCookie;
  
  strCookie = document.cookie;
  
  var intPos = strCookie.indexOf(cookieName);

  if (intPos != -1)
    intPos += cookieName.length;
  else
    return '';

  strCookie = strCookie.substr(intPos);
  intPos = strCookie.indexOf(";");

  if (intPos != -1)
    strCookie = strCookie.substr(0, intPos);

  return strCookie;
}