- /* New: Variable searchhi_string to keep track of words being searched. */
- var searchhi_string = '';
- /* http://www.kryogenix.org/code/browser/searchhi/ */
- /* Modified 20021006 to fix query string parsing and add case insensitivity */
- 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;
- 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 unhighlightWord(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;
- if (pn.className == "searchword") {
- prevSib = pn.previousSibling;
- nextSib = pn.nextSibling;
- nextSib.nodeValue = prevSib.nodeValue + node.nodeValue + nextSib.nodeValue;
- prevSib.nodeValue = '';
- node.nodeValue = '';
- }
- }
- }
- }
- function unhighlight(node) {
- // Iterate into this nodes childNodes
- if (node.hasChildNodes) {
- var hi_cn;
- for (hi_cn=0;hi_cn<node.childNodes.length;hi_cn++) {
- unhighlight(node.childNodes[hi_cn]);
- }
- }
- // And do this node itself
- if (node.nodeType == 3) { // text node
- pn = node.parentNode;
- if( pn.className == "searchword" ) {
- prevSib = pn.previousSibling;
- nextSib = pn.nextSibling;
- nextSib.nodeValue = prevSib.nodeValue + node.nodeValue + nextSib.nodeValue;
- prevSib.nodeValue = '';
- node.nodeValue = '';
- }
- }
- }
- function googleSearchHighlight() {
- if (!document.createElement) return;
- ref = document.referrer;
- ref = ref.replace(/\/search\/web\//,'?search&q='); // Most WebCrawler searches
- if (ref.indexOf('?') == -1) return;
- qs = ref.substr(ref.indexOf('?')+1);
- qsa = qs.split('#');
- qs = qsa[0];
- qs = qs.replace(/(^|&)p=Q&ts=e&/,'&'); // Most Eurekster searches
- qs = qs.replace(/(^|&)query=/,'&q='); // Most Lycos searches
- qs = qs.replace(/(^|&)key=/,'&q='); // Most Walhello searches
- qs = qs.replace(/(^|&)keywords=/i,'&q='); // Most Overture searches
- qs = qs.replace(/(^|&)searchfor=/,'&q='); // Most Mysearch.com searches
- qs = qs.replace(/(^|&)qt=/,'&q='); // Most Acoona.com searches
- qs = qs.replace(/(^|&)s=/,'&q='); // Most Technirati GET searches
- 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] == 'w') { // q= for Google, p= for Yahoo, w= for Eurekster
- // Trim leading and trailing spaces after unescaping
- qsip[1] = unescape(qsip[1]).replace(/^\s+|\s+$/g, "");
- if( qsip[1] == '' ) continue;
- phrases = qsip[1].replace(/\+/g,' ').split(/\"/);
- for(p=0;p<phrases.length;p++) {
- phrases[p] = unescape(phrases[p]).replace(/^\s+|\s+$/g, "");
- if( phrases[p] == '' ) continue;
- if( p % 2 == 0 ) words = phrases[p].replace(/([+,()]|%(29|28)|\W+(AND|OR)\W+)/g,' ').split(/\s+/);
- else { words=Array(1); words[0] = phrases[p]; }
- for (w=0;w<words.length;w++) {
- if( words[w] == '' ) continue;
- highlightWord(document.getElementsByTagName("body")[0],words[w]);
- if( p % 2 == 0 ) searchhi_string = searchhi_string + ' ' + words[w];
- else searchhi_string = searchhi_string + ' "' + words[w] + '"';
- }
- }
- }
- }
- }
- // Everything form this point on is modified to allow for highlighting
- // of terms found in the REQUEST URI
- function localSearchHighlight(searchStr, tryQ) {
- if (!document.createElement) return;
- if (searchStr == '') return;
- if (searchStr.indexOf('?') == -1) qs = searchStr.substr(0);
- else qs = searchStr.substr(1);
- qsa = qs.split('&');
- for (i=0;i<qsa.length;i++) {
- qsip = qsa[i].split('=');
- if (qsip.length == 1) continue;
- if (qsip[0] == 'h' || ( tryQ && ( qsip[0] == 'q' || qsip[0] == 'p' ) ) ) { // be careful about ghost highlights
- // Trim leading and trailing spaces after unescaping
- qsip[1] = unescape(qsip[1]).replace(/^\s+|\s+$/g, "");
- if( qsip[1] == '' ) continue;
- phrases = qsip[1].replace(/\+/g,' ').split(/\"/);
- // Use this next line if you would like to force the script to always
- // search for phrases. See below as well!!!
- //phrases = new Array(); phrases[0] = ''; phrases[1] = qsip[1].replace(/\+/g,' ');
- for(p=0;p<phrases.length;p++) {
- phrases[p] = unescape(phrases[p]).replace(/^\s+|\s+$/g, "");
- if( phrases[p] == '' ) continue;
- if( p % 2 == 0 ) words = phrases[p].replace(/([+,()]|%(29|28)|\W+(AND|OR)\W+)/g,' ').split(/\s+/);
- else { words=Array(1); words[0] = phrases[p]; }
- for (w=0;w<words.length;w++) {
- if( words[w] == '' ) continue;
- highlightWord(document.getElementsByTagName("body")[0],words[w]);
- if( p % 2 == 0 ) searchhi_string = searchhi_string + ' ' + words[w];
- else searchhi_string = searchhi_string + ' "' + words[w] + '"';
- // As before, use this next line if forcing phrase searching
- //else searchhi_string = searchhi_string + ' ' + words[w];
- }
- }
- }
- }
- }
- function postSearchHighlight() {
- // Trim any leading or trailing space
- // (this is an overkill way of getting rid of the leading
- // space that always is present in searchhi_string)
- searchhi_string = searchhi_string.replace(/^\s+|\s+$/g, "");
- // In MSIE, sometimes the dynamic generation of the spans
- // for the highlighting takes the anchor out of focus.
- // Here, we put it back in focus.
- if( location.hash.length > 1 ) location.hash = location.hash;
- }
- function SearchHighlight() {
- // This logic should allow pages to use themselves as search
- // engines while not ghosting old searches on current results.
- if( document.createElement ) {
- var docrefpage = document.referrer.split('?',2);
- var locrefpage = location.href.split('?',1);
- // Check to see if the referrer looks like it has search terms
- // In the special case when the referrer *IS* this page,
- // ignore the referrer.
- if( ( docrefpage[0].toUpperCase() != locrefpage[0].toUpperCase() )
- &&
- ( ( docrefpage[1] && docrefpage[1].match(/(^|&)(p=Q&ts=e&|query=|key=|keywords=|searchfor=|qt=|q=)/) )
- || document.referrer.match(/\/search\/web\//) ) )
- {
- // Look to location (via "h" field) *AND* referrer
- googleSearchHighlight();
- localSearchHighlight(location.search);
- } else {
- // Look to location *ONLY* for highlighting
- var locsearch = location.search;
- if( locsearch.indexOf('?') == -1 ) {
- // Found no GET string, so look to pathname in
- // last effort to match something
- locsearch = locsearch.replace(/\/search\//,'?search&q='); // Most WebCrawler searches
- }
- localSearchHighlight(location.search, 1);
- }
- postSearchHighlight();
- }
- }
- function SmartHighlight()
- {
- // This function is like SearchHighlight()
- // but it detects a page refresh and toggles highlighting
- // on each refresh. This gives a quick way to turn off
- // highlighting (and quickly turn it on after).
- var today = new Date();
- var now = today.getUTCSeconds();
- var cookie = document.cookie;
- var cookieArray = cookie.split('; ');
- // Get timestamp stored in cookie
- for (var loop=0; loop < cookieArray.length; loop++){
- var nameValue = cookieArray[loop].split("=");
- if (nameValue[0].toString() == 'SHTS'){
- var cookieTime = parseInt( nameValue[1] );
- }
- else if (nameValue[0].toString() == 'SHTSP'){
- var cookieName = nameValue[1];
- }
- }
- // If we got a cookie, the cookie is from this page,
- // and the cookie's time is very close to now, then
- // this must be a page refresh (or very similar)
- // so we don't want to highlight. (the 5 second threshold
- // may need to be adjusted for slower browsers/pages/etc.)
- if( cookieName &&
- cookieTime &&
- cookieName == escape(location.href) &&
- Math.abs(now - cookieTime) < 5 )
- {
- // Refresh detected, so don't highlight
- // Disable refresh detection for this run;
- // this is what allows us to toggle the highlighting
- // back *ON* on the next refresh
- searchhi_unl = 0;
- }
- else
- {
- // This is not a refresh, so highlight
- SearchHighlight();
- }
- }
- function SmartHLUnload()
- {
- if( searchhi_unl > 0 )
- {
- // Turn refresh detection on so that if this
- // page gets quickly loaded, we know it's a refresh
- var today = new Date();
- var now = today.getUTCSeconds();
- document.cookie = 'SHTS=' + now + ';';
- document.cookie = 'SHTSP=' + escape(location.href) + ';';
- }
- else
- {
- // Refresh detection has been disabled
- document.cookie = 'SHTS=;';
- document.cookie = 'SHTSP=;';
- }
- }
- function NotRefreshHL()
- {
- // This is not a refresh. It's probably a submit
- // with the same search string, so disable refresh
- // detection on this go around.
- searchhi_unl = 0;
- return true;
- }
- // By default, turn refresh detection on
- var searchhi_unl = 1;
- // window.onload = SearchHighlight;
- // window.onload = SmartHighlight;
- // window.onunload = SmartHLUnload;