function setcookie(name, value, expires, path, domain, secure)
{
	var today = new Date();
	today.setTime( today.getTime() );

	if(expires)
	{
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date(today.getTime() + (expires));

	document.cookie = name + "=" + escape(value) +
	((expires) ? ";expires=" + expires_date.toGMTString() : "") +
	((path) ? ";path=" + path : "") +
	((domain) ? ";domain=" + domain : "") +
	((secure) ? ";secure" : "");
}

function switch_language(language_key)
{	
	setcookie("lang_key", language_key, 100, '/');
}