Google search highlighter

When visior reach your web site via google search ,then search term will be highlighted on your page ...
Copy and paste this code where u want.. <br /> <!-- this script got from http://usefull-script.blogspot.com/Coded by: Ratnakar Mishra --><br /> <br /> <br /> <!-- Step - 1 past this script in your head section --><br /> <script src="google.js"> </script><br /> <br /> <br /> <!--Step -2 Save this script with the name of google.js --><br /> var google_text_color = '#000000';<br /> <br /> var google_link_colors = new Array('#ffff66','#a0ffff','#99ff99','#ff9999','#ff66ff');<br /> <br /> function init_google(){<br /> var pattern = /google\./i;<br /> if (pattern.exec(document.referrer) != null){<br /> var url_parts = document.referrer.split('?');<br /> if (url_parts[1]){ <br /> var url_args = url_parts[1].split('&');<br /> for(var i=0; i<url_args.length; i++){ var keyval = url_args[i].split('='); if (keyval[0] == 'q'){ go_google(decode_url(keyval[1])); return; } } } } } function decode_url(url){ return unescape(url.replace(/\+/g,' ')); } function go_google(terms){ terms = terms.replace(/\"/g,""); var terms_split = terms.split(' '); var c = 0; for(var i=0; i<terms_split.length; i++){ highlight_goolge(terms_split[i], document.body,google_link_colors[c]); c = (c == google_link_colors.length-1)?0:c+1; } } function highlight_goolge(term, container, color){ var term_low = term.toLowerCase(); for(var i=0; i<container.childNodes.length; i++){ var node = container.childNodes[i]; if (node.nodeType == 3){ var data = node.data; var data_low = data.toLowerCase(); if (data_low.indexOf(term_low) != -1){ //term found! var new_node = document.createElement('SPAN'); node.parentNode.replaceChild(new_node,node); var result; while((result = data_low.indexOf(term_low)) != -1){ new_node.appendChild(document.createTextNode(data.substr(0,result))); new_node.appendChild(create_node_google(document.createTextNode(data.substr(result,term.length)),color)); data = data.substr(result + term.length); data_low = data_low.substr(result + term.length); } new_node.appendChild(document.createTextNode(data)); } }else{ //recurse highlight_goolge(term, node, color); } } } function create_node_google(child, color){ var node = document.createElement('SPAN'); node.style.backgroundColor = color; node.style.color = google_text_color; node.appendChild(child); return node; } if (window.addEventListener) window.addEventListener("load", init_google, false) else if (window.attachEvent) window.attachEvent("onload", init_google) else if (document.getElementById) window.onload=init_google <font face="Tahoma"><a target="_blank" href="http://usefull-script.blogspot.com/"><span style="font-size: 8pt; text-decoration: none">JavaScript Free Code</span></a> </font><br /><br /> <br /><br />