function ChangeLang(lang1, lang2)
{
	var CurURL;
	var NewURL;
	
	//lang1 = '/' + lang1 + '/';
	//lang2 = '/' + lang2 + '/';
	
	CurURL = window.location.toString();
	NewURL = replace(CurURL, lang1, lang2);
	
	window.location = NewURL;
}

function replace(haystack, oldNeedle, newNeedle) {
    i = haystack.indexOf(oldNeedle);
    r = "";
    if (i == -1) return haystack;
    r += haystack.substring(0,i) + newNeedle;
    if (i + oldNeedle.length < haystack.length)
        r += replace(haystack.substring(i + oldNeedle.length, haystack.length), oldNeedle, newNeedle);
    return r;
    }