// LOAD-ORDER: 130

/* http://www.kryogenix.org/code/browser/searchhi/ */
/* Modified 20021006 to fix query string parsing and add case insensitivity */
/* Modified 20070316 to stop highlighting inside nosearchhi nodes */
function highlightWord(node,word) {
	// 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;
			// check if we're inside a "nosearchhi" zone
			checkn = pn;
			while (checkn.nodeType != 9 && 
			checkn.nodeName.toLowerCase() != 'body') { 
			// 9 = top of doc
				if (checkn.className.match(/\bnosearchhi\b/)) { return; }
				checkn = checkn.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);
			}
		}
	}
}

/*function dspSearchHighlight() {
	if(!location.href.include('/search')){
		alert(LAST_SEARCH_Q_PARAM);
		if (!document.createElement) return;
		ref = document.referrer;
		if (ref.indexOf('?') == -1) return;
		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') { // q= for Google, p= for Yahoo
	       	
			words = unescape(qsip[1].replace(/\+/g,' ')).split(/\s+/);
                for (w=0;w<words.length;w++) {
                	if(!words[w].blank()){
                		alert(escape(words[w]).gsub('%C3%A6','%E6'));
                		alert(unescape(escape(words[w]).gsub('%C3%A6','%E6')).toUpperCase());
						highlightWord($('main'),words[w].gsub(/\*|\?/, ''));
					}
               	}
	        }
		}
	}
}*/
function dxpSearchHighlight() {
	if(!location.href.include('/search')){
		if (!document.createElement) return;
		if(!document.referrer.include('/search')) return;
		if(!document.referrer.include('?')) return;
		qs = document.referrer.parseQuery().q;
		if (qs.include(' AND ')){
			qs = qs.gsub(' AND ', ' ');
		}
		qs = qs.gsub(/\+/, ' ');
		if(qs.include("\"")){
			highlightWord($('main'), qs.gsub(/\*|\?|\"/, ''));
		}
		else{
			if(qs.include(':')){
				words = qs.substring(qs.indexOf(':')+1, qs.length).split(/\s+/);
			}
			else{
				words = qs.split(/\s+/);
			}
	        for (w=0;w<words.length;w++) {
	           	if(!words[w].blank()){
					highlightWord($('main'),words[w].gsub(/\*|\?|\"/, ''));
				}
	       	}
		}
    }
}

window.onload = dxpSearchHighlight;