function doClick(o){
	 o.className="nav_current";
	 var j;
	 var id;
	 var e;
	 for(var i=1;i<=3;i++){
	   id ="nav"+i;
	   j = document.getElementById(id);
	   e = document.getElementById("sub"+i);
	   if(id != o.id){
	   	 j.className="nav_link";
	   	 e.style.display = "none";
	   }else{
			e.style.display = "block";
	   }
	 }
	 }

function doClickzip(o){
	 o.className="nav_currentzip";
	 var j;
	 var id;
	 var e;
	 for(var i=1;i<=3;i++){
	   id ="navzip"+i;
	   j = document.getElementById(id);
	   e = document.getElementById("subzip"+i);
	   if(id != o.id){
	   	 j.className="nav_linkzip";
	   	 e.style.display = "none";
	   }else{
			e.style.display = "block";
	   }
	 }
	 }

//дÈëcookie
function writeCookie(name, value, hours)
{
    var expire = "";
    if(hours != null)
    {
        expire = new Date((new Date()).getTime() + hours * 3600000);
        expire = "; expires=" + expire.toGMTString();
    }
    document.cookie = name + "=" + escape(value) + expire + ";path=/";
}