if (document.getElementById) {
addLoadEvent(prepCQSearch);
addLoadEvent(prepCQLis);
}
function prepCQSearch () {
	if (!document.getElementById('cqsearch')) {
		var s = document.createElement('p');
		s.id = 'cqsearch';
		var cq = document.getElementById('cqlist');
		cq.parentNode.insertBefore(s,cq);
	} else var s = document.getElementById('cqsearch');
	s.appendChild(document.createTextNode('Search '));
	var i = document.createElement('input');
	i.type = 'text';
	i.onkeyup = function () {
		var v = this.value;
		if (v.length > 2) var x = doCQSearch(this.value);
		if (!x) {
			resetCQResults('key');
		}
	}
	s.appendChild(i);
	var img = document.createElement('img');
	img.src = '/emweb/graphics/controls/clear_btn.gif';
	img.id = 'clear-button';
	img.onclick = function () {
		resetCQResults('click');
	}
	s.appendChild(img);
}
function doCQSearch(value) {
	var nonw = /\W/g;
	var withw = /\w/g;
	if (!value.match(withw)) {
		return false;
	}
	//value = value.replace(nonw,''); // remove any non-word characters
	var l = document.getElementById('cqlist').childNodes;
	var pattern = eval('/'+value+'/gi');
	if (!document.getElementById('resultsP')) {
		var resultsP = document.createElement('p');
		resultsP.id = 'resultsP';
		rh = document.createElement('h4');
		rh.appendChild(document.createTextNode('Search Results'));
		resultsP.appendChild(rh);
		resultsP.appendChild(document.createElement('ul'));
		var cq = document.getElementById('cqlist');
		cq.parentNode.insertBefore(resultsP,cq);
	} else {
		var resultsP = document.getElementById('resultsP');
		clearCQResults();
	}
	resultsP.style.display = 'block';
	for (i=0; i<l.length; i++) {
		if (l[i].nodeName && (l[i].nodeName == 'LI')) {
			var oT = l[i].offsetTop;
			var q = l[i].getElementsByTagName('a')[0].firstChild.data;
			var qp = l[i].childNodes;
			var searchString = q+' ';
			for (j=0; j < qp.length; j++) {
				if (qp[j].nodeType == 1) {
					for (k=0; k < qp[j].childNodes.length; k++) {
						if (qp[j].childNodes[k].nodeType == 3) searchString += qp[j].childNodes[k].data+' ';
					}
				}
			}
			if (searchString.match(pattern)) {
				if (!l[i].className.match('match')) l[i].className += ' match';
				var newresult = document.createElement('li');
				var newa = document.createElement('a');
				newa.appendChild(document.createTextNode(q));
				newa.href = '';
				newa.refScroll = oT;
				newa.refElem = l[i];
				newa.onclick = function () {
					window.scrollTo(1,this.refScroll);
					toggleContent(this.refElem);
					return false;
				}
				newresult.appendChild(newa);
				resultsP.getElementsByTagName('ul')[0].appendChild(newresult);
			} else {
				l[i].className = l[i].className.replace('match','');
			}
		}
	}
	if (!resultsP.getElementsByTagName('ul')[0].childNodes.length) resultsP.getElementsByTagName('ul')[0].innerHTML = '<li>No matches</li>';
	return true;
}
function resetCQResults(src) {
	clearCQResults();
	var resultsP = document.getElementById('resultsP');
	resultsP.style.display = 'none';
	if (src == 'click') {
		var s = document.getElementById('cqsearch').getElementsByTagName('input')[0];
		s.value = '';
	}
	var l = document.getElementById('cqlist').childNodes;
	for (i=0; i<l.length; i++) {
		if (l[i].nodeName && (l[i].nodeName == 'LI')) {
			l[i].className = l[i].className.replace('match','');
		}
	}
}
function clearCQResults() {
	var resultsP = document.getElementById('resultsP');
	var resultList = resultsP.getElementsByTagName('ul')[0];
	while (resultList.hasChildNodes()) { resultList.removeChild(resultList.firstChild); }	
}
function prepCQLis() {
	var cql = document.getElementById('cqlist');
	var li = cql.childNodes;
	for (i=0; i < li.length; i++) {
		if (li[i].nodeName == 'LI') { // only deal with LI children nodes
			li[i].className = 'normal';
			var children = li[i].childNodes;
			for (j=0; j < children.length; j++) {
				//if (i>30) alert(children[j].nodeType+' : '+children[j].nodeName);
				if (children[j].nodeType == 1) {
					if (children[j].className.match('question')) {
						// if question, treat with extra actions
						var a = document.createElement('a');
						a.innerHTML = children[j].innerHTML;
						children[j].innerHTML = '';
						children[j].appendChild(a);
						a.href = '';
						a.onclick = a.onkeypress = function () {
							toggleContent(this.parentNode.parentNode);
							return false;
						}
					} else {
						// otherwise, it's part of the answer
						children[j].className += ' hidden_child';
					}
				}
			}
		}
	}
}
function toggleContent (elem) {
	if (elem.className.match('normal')) elem.className = elem.className.replace('normal','display');
	else elem.className = elem.className.replace('display','normal');
}