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(function($){
/* Adapted from http://www.kryogenix.org/code/browser/searchhi/ */
$.fn.highlightText = function(text, className) {
function highlight(node) {
if (node.nodeType == 3) { // Node.TEXT_NODE
var val = node.nodeValue;
var pos = val.toLowerCase().indexOf(text);
if (pos >= 0 && !$.className.has(node.parentNode, className)) {
var span = document.createElement("span");
span.className = className;
var txt = document.createTextNode(val.substr(pos, text.length));
span.appendChild(txt);
node.parentNode.insertBefore(span, node.parentNode.insertBefore(
document.createTextNode(val.substr(pos + text.length)),
node.nextSibling));
node.nodeValue = val.substr(0, pos);
}
} else if (!$(node).is("button, select, textarea")) {
$.each(node.childNodes, function() { highlight(this) });
}
}
return this.each(function() { highlight(this) });
}
$(document).ready(function() {
var elems = $(".searchable");
if (!elems.length) return;
function getSearchTerms(url) {
if (url.indexOf("?") == -1) return [];
var params = url.substr(url.indexOf("?") + 1).split("&");
for (var p in params) {
var param = params[p].split("=");
if (param.length < 2) continue;
if (param[0] == "q" || param[0] == "p") {// q= for Google, p= for Yahoo
var query = decodeURIComponent(param[1].replace(/\+/g, " "));
if (query[0] == "!") query = query.slice(1);
var terms = [];
$.each(query.split(/(".*?"|'.*?'|\s+)/), function() {
if (terms.length < 10) {
term = this.replace(/^\s+$/, "")
.replace(/^['"]/, "")
.replace(/['"]$/, "");
if (term.length >= 3)
terms.push(term);
}
});
return terms;
}
}
return [];
}
var terms = getSearchTerms(document.URL);
if (!terms.length) terms = getSearchTerms(document.referrer);
$.each(terms, function(idx) {
elems.highlightText(this.toLowerCase(), "searchword" + (idx % 5));
});
});
})(jQuery);
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