<!-- Begin

function findPos(ele) {
	if (ele.offsetParent) {
		for (var posX=0, posY=0; ele.offsetParent; ele=ele.offsetParent ) {
			posX += ele.offsetLeft;
			posY += ele.offsetTop;
		}
		return [posX,posY];
	} else {
		return [ele.x,ele.y];
	}
}

/* http://www.kryogenix.org/code/browser/searchhi/ */
/* Modified 20021006 to fix query string parsing and add case insensitivity */
/* Modified 20060621 by Dan Hogan to scroll to first occurrence of word*/
var counter = 0;
function highlightWord(node,word) {

	var posX = 0;
	var posY = 0;
	// Iterate into this nodes childNodes
	if (node.hasChildNodes) {
		var hi_cn;
		for (hi_cn=0;hi_cn<node.childNodes.length;hi_cn++) {
			highlightWord(node.childNodes[hi_cn],word);
		}
	}
	
	// And do this node itself
	if (node.nodeType == 3) { // text node
		tempNodeVal = node.nodeValue.toLowerCase();
		tempWordVal = word.toLowerCase();
		if (tempNodeVal.indexOf(tempWordVal) != -1) {
			pn = node.parentNode;
			if (pn.className != "searchword") {
				// word has not already been highlighted!
				nv = node.nodeValue;
				ni = tempNodeVal.indexOf(tempWordVal);
				// Create a load of replacement nodes
				before = document.createTextNode(nv.substr(0,ni));
				docWordVal = nv.substr(ni,word.length);
				after = document.createTextNode(nv.substr(ni+word.length));
				hiwordtext = document.createTextNode(docWordVal);
				hiword = document.createElement("span");
				hiword.className = "searchword";
				hiword.appendChild(hiwordtext);
				pn.insertBefore(before,node);
				pn.insertBefore(hiword,node);
				pn.insertBefore(after,node);
				pn.removeChild(node);
				// Scroll to the first occurrence of the word,
				// but ignore anything in the top menu list.
				if (pn.parentNode.tagName != "LI") counter++;
				if (counter == 1) {
					arrPos = findPos(pn);
					posX = arrPos[0];
					posY = arrPos[1];
					scrollTo(posX,posY);
				}
			}
		}
	}
}

function SearchHighlight(qs) {
	if (!document.createElement) return;
	qsa = qs.split(' ');
	for (i=0;i<qsa.length;i++) {
		qsip = qsa[i];
		words = unescape(qsip.replace(/\+/g,' ')).split(/\s+/);
		for (w=0;w<words.length;w++) {
			highlightWord(document.getElementsByTagName("body")[0],words[w]);
		}
	}
}

function toggletopics(id) {
	var topics = document.getElementById(id);
	var topicsClass = topics.className;
	topics.className = (topicsClass == 'shown') ? 'hidden' : 'shown';
}

//  End -->