function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}
function createCookie(name,value,days)
{
  if (days)
  {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*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;
}
function eraseCookie(name)
{
	createCookie(name,"",-1);
}

function initDynmenu()
{
	var menu_object = document.getElementById('side-menu');
	var menu1 = document.getElementById('product-menu');
	var menu2 = document.getElementById('producer-menu');
	if(menu_object) {
		menu_object.className = 'dynamic';
		if (menu2.className != 'active') menu1.className = 'active';
		menu1.getElementsByTagName('h2')[0].getElementsByTagName('a')[0].onfocus =
		menu2.getElementsByTagName('h2')[0].getElementsByTagName('a')[0].onfocus = function() { return switchTo(this.parentNode.parentNode); };
		menu1.getElementsByTagName('h2')[0].getElementsByTagName('a')[0].onclick =
		menu2.getElementsByTagName('h2')[0].getElementsByTagName('a')[0].onclick = function() { return false; };
	}
}

function switchTo(menu)
{
	var menu1 = document.getElementById('product-menu');
	var menu2 = document.getElementById('producer-menu');
	if(menu == menu1){
		menu1.className = 'active';
		menu2.className = '';
		eraseCookie('m');
	}
	else {
		menu2.className = 'active';
		menu1.className = '';
		createCookie('m', 1, 365);
	}
	return false;
};

function mapMouseMove(e)
{
	var i = this.id.substring(4);
  if(i < 8) {
    document.getElementById('map').style.backgroundPosition = "0px -"+(i*160)+"px";
  } else {
    document.getElementById('map').style.backgroundPosition = "-200px -"+((i-7)*160)+"px";
  }
}
function mapMouseOut(e)
{
  document.getElementById('map').style.backgroundPosition = "0 0";
}

function initMap()
{
	var map = document.getElementById('map');
	if(map){
		var areas = map.getElementsByTagName('area');
		for(var i = 0; i < areas.length; i++){
			areas[i].onmousemove = mapMouseMove;
			areas[i].onmouseout = mapMouseOut;
		}
	}
}

addLoadEvent(initDynmenu);
addLoadEvent(initMap);