highlight

function highlightSearchTerms(sword) {
$$('body').map(Element.extend).first().descendants().each(function (el) {
	if (el.nodeType == Node.ELEMENT_NODE && el.tagName != 'TEXTAREA' && el.tagName != 'INPUT' && el.tagName != 'SCRIPT') {
		$A(el.childNodes).each(function (onlyChild) {
			var pos = onlyChild.textContent.indexOf(sword);
			if (onlyChild.nodeType == Node.TEXT_NODE && pos >= 0) {
				//console.log(onlyChild);
				var spannode = document.createElement('span');
			    spannode.className = 'highlight';
			    var middlebit = onlyChild.splitText(pos);
			    var endbit = middlebit.splitText(sword.length);
			    var middleclone = middlebit.cloneNode(true);
			    spannode.appendChild(middleclone);
			    middlebit.parentNode.replaceChild(spannode, middlebit);

				//onlyChild. = el.innerHTML.replace(new RegExp('('+sword+')', 'gi'), '<span class="highlight">$1</span>');
			}
		});
	}
});
}