function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

function submitForm(id) {
	document.getElementById(id).submit();
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1; 
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return "";
}

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

switchMenu = function(topMenu) {
	var menus = document.getElementById("nav_main").getElementsByTagName("DIV");
	for (var i=0; i<menus.length; i++) {
		menus[i].className = 'menu';
	}
	topMenu.className = 'menu_active';
	
	var submenus = document.getElementById("nav_submenus").getElementsByTagName("DIV");
	for (var i=0; i<submenus.length; i++) {
		submenus[i].className = 'hidden';
	}
	var activeSubmenu = document.getElementById('sub_'+topMenu.id);
	
	if (activeSubmenu != null) {
		activeSubmenu.className = 'visible';
		setCookie('nahka_active_menu', topMenu.id, 3600);
	}
}

switchMenuOff = function(topMenu) {
	topMenu.className = 'menu';
}

setMenuStatus = function() {
	var activemenuId;
	if (getCookie('nahka_active_menu') != "") {
		activeMenuId = getCookie('nahka_active_menu');
	} else {
		activeMenuId = 'tekstiilit';
	}
	var activeMenu = document.getElementById(activeMenuId);
	switchMenu(activeMenu);
}

function changeColor(color, target) {
	var links = document.getElementById("hirvivarit").getElementsByTagName("a");
	var link = document.getElementById(color+"_link");
	var targetImg = document.getElementById("switchimage");
	
	for (var i=0; i<links.length; i++) {
		links[i].className = '';
	}
	
	link.className = 'selected';
	targetImg.src = target;
	
}