I'm looking for a page search module that will function the same as ctrl+f.  The search module just needs to search the page and highlight the term entered.  It sounds simple to code.  I have found many html codes, but have no idea how to get the actual search function to work.

html search box: http://support.google.com/customsearch/bin/answer.py?hl=en&answer=1351747

/* javascript search function from http://www.javascripter.net/faq/searchin.htm */
var TRange=null;

function findString (str) {
if (parseInt(navigator.appVersion)<4) return;
var strFound;
if (window.find) {

// CODE FOR BROWSERS THAT SUPPORT window.find

strFound=self.find(str);
if (!strFound) {
strFound=self.find(str,0,1);
while (self.find(str,0,1)) continue;
}
}
else if (navigator.appName.indexOf("Microsoft")!=-1) {

// EXPLORER-SPECIFIC CODE

if (TRange!=null) {
TRange.collapse(false);
strFound=TRange.findText(str);
if (strFound) TRange.select();
}
if (TRange==null || strFound==0) {
TRange=self.document.body.createTextRange();
strFound=TRange.findText(str);
if (strFound) TRange.select();
}
}
else if (navigator.appName=="Opera") {
Opera browsers not supported, sorry...")
return;
}
if (!strFound) String '"+str+"' not found!")
return;
}