function searchEngine(){window.open(document.search.whichEngine.options[document.search.whichEngine.selectedIndex].value + document.search.query.value);return false;}
function highlightWord(node,word) {
	if (node.hasChildNodes) {
		var hi_cn;
		for (hi_cn=0;hi_cn<node.childNodes.length;hi_cn++) {
			highlightWord(node.childNodes[hi_cn],word);
		}
	}
	if (node.nodeType == 3) {
		tempNodeVal = node.nodeValue.toLowerCase();
		tempWordVal = word.toLowerCase();
		if (tempNodeVal.indexOf(tempWordVal) != -1) {
			pn = node.parentNode;
			if (pn.className != "searchword") {
				nv = node.nodeValue;
				ni = tempNodeVal.indexOf(tempWordVal);
				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);
			}
		}
	}
}

function searchHighlight() {
	vTmp = ''
	if (!document.createElement) 
		return vTmp;
	ref = document.referrer;
	if (ref.indexOf('?') == -1) 
		return vTmp;
	qs = ref.substr(ref.indexOf('?')+1);
	qsa = qs.split('&');
	for (i=0;i<qsa.length;i++) {
		qsip = qsa[i].split('=');
	  if (qsip.length == 1) 
			continue;
		if (qsip[0] == 'q' || qsip[0] == 'p' || qsip[0] == 'query') {
			words = unescape(qsip[1].replace(/\+/g,' ')).split(/\s+/);
			for (w=0;w<words.length;w++) {
				highlightWord(document.getElementsByTagName("body")[0],words[w]);
				vTmp = vTmp +' '+ words[w];
			}
		}
	}
	return vTmp;
}