//var LANGUAGE = "en";

function $(id) { return document.getElementById(id) }
function $c(name) { return document.createElement(name); }

function addEvent(obj, type, fn){
  if (obj.addEventListener)
    obj.addEventListener(type, fn, false);
  else if (obj.attachEvent){
    obj["e"+type+fn] = fn;
    obj[type+fn] = function(){obj["e"+type+fn](window.event);}
    obj.attachEvent("on"+type, obj[type+fn]);
  }
}

function getScrollY()
{
	return parseInt( window.pageYOffset ? window.pageYOffset :
		 ( document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) - 20 );
}

function getScrollX()
{
	return parseInt( window.pageXOffset ? window.pageXOffset :
		 ( document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft) - 20 );
}

/* class */
function addClass(el,c) { if(!containsClass(el, c)) el.className += " " + c; }
function removeClass(el, c) { el.className = el.className.replace(new RegExp(c,"g"),""); }
function containsClass(el, c) { return el.className.indexOf(c) != -1 }

/* cookies */
function getCookie(name)
{
	var arg	= name + '=';
	var alen = arg.length;
	var	clen =document.cookie.length;
	var i = 0;
	while (i<clen)
	{
		var j = i + alen;
		if (document.cookie.substring(i,j)==arg) return getCookieVal(j);
		i = document.cookie.indexOf(" ",i) + 1;
		if (i==0) break;
	};
	return null;
}

function setCookie(name,value,path,expires)
{
	str = name + "=" + value;
	if (expires) str += " ;expires="+expires;
        if (path) str += " ;path="+path;
	document.cookie = str;
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf(";", offset);
	if (endstr==-1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset,endstr));
};

function delCookie(name)
{
	if (getCookie(name))
    	document.cookie = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT";
}