$(function() {
	jQuery.highlight = function(node, te, classname) {
		var pos, skip, spannode, middlebit, endbit, middleclone;
		skip = 0;
		if (node.nodeType == 3) {
			pos = node.data.toUpperCase().indexOf(te);
			if (pos >= 0) {
				spannode = document.createElement('span');
				spannode.className = classname;
				middlebit = node.splitText(pos);
				endbit = middlebit.splitText(te.length);
				middleclone = middlebit.cloneNode(true);
				spannode.appendChild(middleclone);
				middlebit.parentNode.replaceChild(spannode, middlebit);
				skip = 1;
			}
		} else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
			for (var i = 0; i < node.childNodes.length; ++i) {
				i += $.highlight(node.childNodes[i], te, classname);
			}
		}
		return skip;
	};
});