function check_url(div_id, info_div_id)
{
	if( $(div_id) )
	{
		url = $(div_id).value;
		var regexp = /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/
		if( regexp.test(url) )
		{
			$(info_div_id).innerHTML = '<img src="/images/correct.png" alt="OK" />';
		}
		else
		{
			$(info_div_id).innerHTML = '<img src="/images/wrong.png" alt="Wrong" />';
		}
	}
}

function add_language(url)
{
	url += "?"+$('#add_language').serialize();
	val  = $('#add_language').val();

	if( val == "" )
	{
		alert("Bitte Sprache auswählen / Please choose a language");
	}
	else
	{
		window.location = url;
	}
}