function GetFilename(FileString)
	{		
	  
	  	for (var i = FileString.length; i>0; i--)
		  {
			if (FileString.charAt(i) == "/") 
			break;
			
		}

	 
	  return FileString.substr(i+1,FileString.length -1);
	 
	}
	
	function ChangeToIndex(lang)
	{
		location.href = lang + '/index.htm';
	}

	function ChangeToEnglish()  
	{
		location.href = '../anglais/'+ GetFilename(location.href);
	}

	function ChangeToFrench()  
	{
		location.href = '../francais/' + GetFilename(location.href);

	}