function com_stewartspeak_replacement() {
/*
	Dynamic Heading Generator
    By Stewart Rosenberger
    http://www.stewartspeak.com/headings/

	This script searches through a web page for specific or general elements
	and replaces them with dynamically generated images, in conjunction with
	a server-side script.
*/


replaceSelector(".componentheading2","heading.php",true);
var testURL = "test.png" ;

var doNotPrintImages = false;
var printerCSS = "replacement-print.css";

var hideFlicker = false;
var hideFlickerCSS = "replacement-screen.css";
var hideFlickerTimeout = 1000;




/* ---------------------------------------------------------------------------
    For basic usage, you should not need to edit anything below this comment.
    If you need to further customize this script's abilities, make sure
	you're familiar with Javascript. And grab a soda or something.
*/

var items;
var imageLoaded = false;
var documentLoaded = false;

function replaceSelector(selector,url,wordwrap)
{
	if(typeof items == "undefined")
		items = new Array();

	items[items.length] = {selector: selector, url: url, wordwrap: wordwrap};
}

if(hideFlicker)
{		
	document.write('<link id="hide-flicker" rel="stylesheet" media="screen" href="' + hideFlickerCSS + '" />');		
	window.flickerCheck = function()
	{
		if(!imageLoaded)
			setStyleSheetState('hide-flicker',false);
	};
	setTimeout('window.flickerCheck();',hideFlickerTimeout)
}

if(doNotPrintImages)
	document.write('<link id="print-text" rel="stylesheet" media="print" href="' + printerCSS + '" />');

var test = new Image();
test.onload = function() { imageLoaded = true; if(documentLoaded) replacement(); };
test.src = testURL + "?date=" + (new Date()).getTime();

addLoadHandler(function(){ documentLoaded = true; if(imageLoaded) replacement(); });


function documentLoad()
{
	documentLoaded = true;
	if(imageLoaded)
		replacement();
}

function replacement()
{
	for(var i=0;i<items.length;i++)
	{
		var elements = getElementsBySelector(items[i].selector);
		if(elements.length > 0) for(var j=0;j<elements.length;j++)
		{
			if(!elements[j])
				continue ;
		
			var text = extractText(elements[j]);
    		while(elements[j].hasChildNodes())
				elements[j].removeChild(elements[j].firstChild);

			var tokens = items[i].wordwrap ? text.split(' ') : [text] ;
			for(var k=0;k<tokens.length;k++)
			{
				var url = items[i].url + "?text="+escape(tokens[k]+' ')+"&selector="+escape(items[i].selector);
				var image = document.createElement("img");
				image.className = "replacement";
				image.alt = tokens[k] ;
				image.src = url;
				elements[j].appendChild(image);
			}

			if(doNotPrintImages)
			{
				var span = document.createElement("span");
				span.style.display = 'none';
				span.className = "print-text";
				span.appendChild(document.createTextNode(text));
				elements[j].appendChild(span);
			}
		}
	}

	if(hideFlicker)
		setStyleSheetState('hide-flicker',false);
}

function addLoadHandler(handler)
{
	if(window.addEventListener)
	{
		window.addEventListener("load",handler,false);
	}
	else if(window.attachEvent)
	{
		window.attachEvent("onload",handler);
	}
	else if(window.onload)
	{
		var oldHandler = window.onload;
		window.onload = function piggyback()
		{
			oldHandler();
			handler();
		};
	}
	else
	{
		window.onload = handler;
	}
}

function setStyleSheetState(id,enabled) 
{
	var sheet = document.getElementById(id);
	if(sheet)
		sheet.disabled = (!enabled);
}

function extractText(element)
{
	if(typeof element == "string")
		return element;
	else if(typeof element == "undefined")
		return element;
	else if(element.innerText)
		return element.innerText;

	var text = "";
	var kids = element.childNodes;
	for(var i=0;i<kids.length;i++)
	{
		if(kids[i].nodeType == 1)
		text += extractText(kids[i]);
		else if(kids[i].nodeType == 3)
		text += kids[i].nodeValue;
	}

	return text;
}

/*
	Finds elements on page that match a given CSS selector rule. Some
	complicated rules are not compatible.

	Based on Simon Willison's excellent "getElementsBySelector" function.

	Original code (with comments and description):

		http://simon.incutio.com/archive/2003/03/25/getElementsBySelector

*/

function getElementsBySelector(selector)

{

	var tokens = selector.split(' ');

	var currentContext = new Array(document);

	for(var i=0;i<tokens.length;i++)

	{

		token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');

		if(token.indexOf('#') > -1)

		{

			var bits = token.split('#');

			var tagName = bits[0];

			var id = bits[1];

			var element = document.getElementById(id);

			if(tagName && element.nodeName.toLowerCase() != tagName)

				return new Array();

			currentContext = new Array(element);

			continue;

		}



		if(token.indexOf('.') > -1)

		{

			var bits = token.split('.');

			var tagName = bits[0];

			var className = bits[1];

			if(!tagName)

				tagName = '*';



			var found = new Array;

			var foundCount = 0;

			for(var h=0;h<currentContext.length;h++)

			{

				var elements;

				if(tagName == '*')

					elements = currentContext[h].all ? currentContext[h].all : currentContext[h].getElementsByTagName('*');

				else

					elements = currentContext[h].getElementsByTagName(tagName);



				for(var j=0;j<elements.length;j++)

					found[foundCount++] = elements[j];

			}



			currentContext = new Array;

			var currentContextIndex = 0;

			for(var k=0;k<found.length;k++)

			{

				if(found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b')))

					currentContext[currentContextIndex++] = found[k];

			}



			continue;

	    }



		if(token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/))

		{

			var tagName = RegExp.$1;

			var attrName = RegExp.$2;

			var attrOperator = RegExp.$3;

			var attrValue = RegExp.$4;

			if(!tagName)

				tagName = '*';



			var found = new Array;

			var foundCount = 0;

			for(var h=0;h<currentContext.length;h++)

			{

				var elements;

	        	if(tagName == '*')

					elements = currentContext[h].all ? currentContext[h].all : currentContext[h].getElementsByTagName('*');

				else

					elements = currentContext[h].getElementsByTagName(tagName);



				for(var j=0;j<elements.length;j++)

					found[foundCount++] = elements[j];

			}



			currentContext = new Array;

			var currentContextIndex = 0;

			var checkFunction;

			switch(attrOperator)

			{

				case '=':

					checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };

					break;

				case '~':

					checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };

					break;

				case '|':

					checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };

					break;

				case '^':

					checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };

					break;

				case '$':

checkFunction = function(e) { return
(e.getAttribute(attrName).lastIndexOf(attrValue) ==
e.getAttribute(attrName).length - attrValue.length); };

					break;

				case '*':

					checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };

					break;

				default :

					checkFunction = function(e) { return e.getAttribute(attrName); };

			}



			currentContext = new Array;

			var currentContextIndex = 0;

			for(var k=0;k<found.length;k++)

			{

				if(checkFunction(found[k]))

					currentContext[currentContextIndex++] = found[k];

			}



			continue;

		}



		tagName = token;

		var found = new Array;

		var foundCount = 0;

		for(var h=0;h<currentContext.length;h++)

		{

			var elements = currentContext[h].getElementsByTagName(tagName);

			for(var j=0;j<elements.length; j++)

				found[foundCount++] = elements[j];

		}



		currentContext = found;

	}



	return currentContext;

}





}// end of scope, execute code

if(document.createElement && document.getElementsByTagName && !navigator.userAgent.match(/opera\/?6/i))

	com_stewartspeak_replacement();