/* Trim */
	function trim(str, chars)
	{
		return ltrim(rtrim(str, chars), chars);
	}

	function ltrim(str, chars)
	{
		chars = chars || "\\s";
		return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
	}

	function rtrim(str, chars)
	{
		chars = chars || "\\s";
		return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
	}