function get_post_code()
{
	window.open("http://www.post.lt/lt/?id=986");
	return false;
}

function replace_lith_symbols(str)
{
	var from = "ĄČĘĖĮŠŲŪŽąčęėįšųūž";
	var to   = "ACEEISUUZaceeisuuz";
	for (i = 0; i < from.length; i++)
	{
		r = new RegExp(from.substring(i, i + 1), "g");
		str = str.replace(r, to.substring(i, i + 1));
	}
	return str;
}

function isset(  ) {
    var a=arguments; var l=a.length; var i=0;
    if (l==0) { 
        throw new Error('Empty isset'); 
    }

    while (i!=l) {
        if (typeof(a[i])=='undefined' || a[i]===null) { 
            return false; 
        } else { 
            i++; 
        }
    }
    return true;
}