function loadJs(plik)
{
	var _script = document.createElement("script");
	_script.setAttribute("type", "text/javascript");
	_script.setAttribute("src", strSiteBaseUrl + '/' + plik);
	document.getElementsByTagName("head")[0].appendChild(_script);	
}

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

function getCookie(name)
{
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf(name + "=");
		if (c_start!=-1)
		{ 
		  c_start=c_start + 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 login_user()
{
	setCookie('menu','');
	setCookie('arcId', '');
	setCookie('currElem', '');
}