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$.fn.getTextNodes = function (includeWhitespaceNodes) {
	var textNodes = [], nonWhitespaceMatcher = /\S/;
	function _getTextNodes(node) {
		if (node.nodeType == 3) {
			if (includeWhitespaceNodes || nonWhitespaceMatcher.test(node.nodeValue)) {
				textNodes.push(node);
			}
		} else {
			for (var i = 0, len = node.childNodes.length; i < len; ++i) {
				_getTextNodes(node.childNodes[i]);
			}
		}
	}
	this.each(function(i, e) {
		_getTextNodes(e);
	});
	return textNodes;
};