function AReplace(str, search, repl)
	{
		while (str.indexOf(search) != -1)
			str = str.replace(search, repl);
		return str;
	}
	
	function sansaccent(str)
	{
		var norm = new Array('À','Á','Â','Ã','Ä','Å','Æ','Ç','È','É','Ê','Ë','Ì','Í','Î','Ï', 'Ð','Ñ','Ò','Ó','Ô','Õ','Ö','Ø','Ù','Ú','Û','Ü','Ý','Þ','ß', 'à','á','â','ã','ä','å','æ','ç','è','é','ê','ë','ì','í','î','ï','ð','ñ', 'ò','ó','ô','õ','ö','ø','ù','ú','û','ü','ý','ý','þ','ÿ');
	
		var spec = new Array('A','A','A','A','A','A','A','C','E','E','E','E','I','I','I','I', 'D','N','O','O','O','0','O','O','U','U','U','U','Y','b','s', 'a','a','a','a','a','a','a','c','e','e','e','e','i','i','i','i','d','n', 'o','o','o','o','o','o','u','u','u','u','y','y','b','y');
		
		for (var i = 0; i < spec.length; i++)
			str = AReplace(str, norm[i], spec[i]);
		return str;
	} 
	/*
		 * 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 <font> tags will be used.
		 */
		function doHighlight(bodyText, searchTerm, color, highlightStartTag, highlightEndTag) 
		{
		  // the highlightStartTag and highlightEndTag parameters are optional
		  if ((!highlightStartTag) || (!highlightEndTag)) {
			highlightStartTag = "<font style='color:black; background-color:"+color+";font-weight:bold'>";
			highlightEndTag = "</font>";
		  }
		  
		  // 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 = sansaccent(searchTerm.toLowerCase());
		  var lcBodyText = sansaccent(bodyText.toLowerCase());
		  var sBody = lcBodyText;
			
		  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 <script> block
				if (lcBodyText.lastIndexOf("/script>", i) >= lcBodyText.lastIndexOf("<script", i)) {
				  newText += bodyText.substring(0, i) + highlightStartTag + bodyText.substr(i, searchTerm.length) + highlightEndTag;
				  bodyText = bodyText.substr(i + searchTerm.length);
				  lcBodyText = sansaccent(bodyText.toLowerCase());
				  i = -1;
				}
			  }
			}
		  }
		  
		  return newText;
		}
		
		
		/*
		 * This is sort of a wrapper function to the doHighlight function.
		 * It takes the searchText that you pass, optionally splits it into
		 * separate words, and transforms the text on the current web page.
		 * Only the "searchText" parameter is required; all other parameters
		 * are optional and can be omitted.
		 */
		function makeHightLight()
		{
				
		}
		
		var counter = 0;
		var searchArray;

		function highlightSearchTerms(searchText, color, treatAsPhrase, warnOnFailure, highlightStartTag, highlightEndTag)
		{
		  // if the treatAsPhrase parameter is true, then we should search for 
		  // the entire phrase that was entered; otherwise, we will split the
		  // search string so that each word is searched for and highlighted
		  // individually
//		searchArray = searchText;
		  
		  if (!document.body || typeof(document.body.innerHTML) == "undefined") {
			if (warnOnFailure) {
			  alert("Sorry, for some reason the text of this page is unavailable. Searching will not work.");
			}
			return false;
		  }
		  
		  counter = 0;

		  var bodyText = document.body.innerHTML;
			bodyText = doHighlight(bodyText, searchText, color, highlightStartTag, highlightEndTag);
		  document.body.innerHTML = bodyText;
		  return true;
		}
		
		
		/*
		 * This displays a dialog box that allows a user to enter their own
		 * search terms to highlight on the page, and then passes the search
		 * text or phrase to the highlightSearchTerms function. All parameters
		 * are optional.
		 */
		function searchPrompt(defaultText, treatAsPhrase, textColor, bgColor)
		{
		  // This function prompts the user for any words that should
		  // be highlighted on this web page
		  if (!defaultText) {
			defaultText = "";
		  }
		  
		  // we can optionally use our own highlight tag values
		  if ((!textColor) || (!bgColor)) {
			highlightStartTag = "";
			highlightEndTag = "";
		  } else {
			highlightStartTag = "<font style='color:" + textColor + "; background-color:" + bgColor + ";'>";
			highlightEndTag = "</font>";
		  }
		  
		  if (treatAsPhrase) {
			promptText = "Please enter the phrase you'd like to search for:";
		  } else {
			promptText = "Please enter the words you'd like to search for, separated by spaces:";
		  }
		  
		  searchText = prompt(promptText, defaultText);
		
		  if (!searchText)  {
			alert("No search terms were entered. Exiting function.");
			return false;
		  }
		  
		  return highlightSearchTerms(searchText, treatAsPhrase, true, highlightStartTag, highlightEndTag);
		}
		
		
		/*
		 * This function takes a referer/referrer string and parses it
		 * to determine if it contains any search terms. If it does, the
		 * search terms are passed to the highlightSearchTerms function
		 * so they can be highlighted on the current page.
		 */
		function highlightGoogleSearchTerms(referrer)
		{
		  // This function has only been very lightly tested against
		  // typical Google search URLs. If you wanted the Google search
		  // terms to be automatically highlighted on a page, you could
		  // call the function in the onload event of your <body> tag, 
		  // like this:
		  //   <body onload='highlightGoogleSearchTerms(document.referrer);'>
		  
		  //var referrer = document.referrer;
		  if (!referrer) {
			return false;
		  }
		  
		  var queryPrefix = "q=";
		  var startPos = referrer.toLowerCase().indexOf(queryPrefix);
		  if ((startPos < 0) || (startPos + queryPrefix.length == referrer.length)) {
			return false;
		  }
		  
		  var endPos = referrer.indexOf("&", startPos);
		  if (endPos < 0) {
			endPos = referrer.length;
		  }
		  
		  var queryString = referrer.substring(startPos + queryPrefix.length, endPos);
		  // fix the space characters
		  queryString = queryString.replace(/%20/gi, " ");
		  queryString = queryString.replace(/\+/gi, " ");
		  // remove the quotes (if you're really creative, you could search for the
		  // terms within the quotes as phrases, and everything else as single terms)
		  queryString = queryString.replace(/%22/gi, "");
		  queryString = queryString.replace(/\"/gi, "");
		  
		  return highlightSearchTerms(queryString, false);
		}
		
		
		/*
		 * This function is just an easy way to test the highlightGoogleSearchTerms
		 * function.
		 */
		function testHighlightGoogleSearchTerms()
		{
		  var referrerString = "http://www.google.com/search?q=javascript%20highlight&start=0";
		  referrerString = prompt("Test the following referrer string:", referrerString);
		  return highlightGoogleSearchTerms(referrerString);
		}