var NS4 = (document.layers); // Which browser?
var IE4 = (document.all);
var win = window; // window to search.
var n = 0;
function doSearch( searchTerm )
{
if( searchTerm != "" )
{
var highlightStartTag = "";
var highlightEndTag = "";
var bodyText = document.body.innerHTML;
bodyText = doHighlight( bodyText, searchTerm, highlightStartTag, highlightEndTag);
document.body.innerHTML = bodyText;
}
findInPage( searchTerm );
return false;
}
/*
* This is the function that actually highlights a text string by
* adding HTML tags before and after all occurrences of the search
* term. You can pass your own tags if you'd like, or if the
* highlightStartTag or highlightEndTag parameters are omitted or
* are empty strings then the default tags will be used.
*/
function doHighlight(bodyText, searchTerm, highlightStartTag, highlightEndTag)
{
// the highlightStartTag and highlightEndTag parameters are optional
if ((!highlightStartTag) || (!highlightEndTag)) {
highlightStartTag = "";
highlightEndTag = "";
}
// find all occurences of the search term in the given text,
// and add some "highlight" tags to them (we're not using a
// regular expression search, because we want to filter out
// matches that occur within HTML tags and script blocks, so
// we have to do a little extra validation)
var newText = "";
var i = -1;
var lcSearchTerm = searchTerm.toLowerCase();
var lcBodyText = bodyText.toLowerCase();
while (bodyText.length > 0) {
i = lcBodyText.indexOf(lcSearchTerm, i+1);
if (i < 0) {
newText += bodyText;
bodyText = "";
} else {
// skip anything inside an HTML tag
if (bodyText.lastIndexOf(">", i) >= bodyText.lastIndexOf("<", i)) {
// skip anything inside a