function switchlang()
{
	var currentpage = document.location.href;
//	currentpage = currentpage.toLowerCase();
	var position = currentpage.indexOf('lang=');
	
	if (position == -1)
	{
		if (currentpage.indexOf('?') != -1)
		{
			document.location = currentpage + '&lang=en';
		}
		else
		{
			document.location = currentpage + '?lang=en';
		}
	}
	else
	{
		var lang = currentpage.substr(position + 5, 2);	
		var newlocation = currentpage.substr(0, position + 5);
		
		if (lang == 'fr')
		{
			newlocation += 'en' + currentpage.substr(position + 7);
		}
		else
		{
			newlocation += 'fr' + currentpage.substr(position + 7);
		}
		
		document.location = newlocation;
	}
	
}