/*
	SEFFS Release Candidate 1
	Copyright 2005 Claus Wahlers (claus@codeazur.com.br)
	Licensed under the CC-GNU LGPL http://creativecommons.org/licenses/LGPL/2.1/

	The code below is based on sIFR (Scalable Inman Flash Replacement) 2.0 RC3
	Copyright 2004 Mike Davidson, Shaun Inman, Tomas Jogin and Mark Wubben
	Licensed under the CC-GNU LGPL http://creativecommons.org/licenses/LGPL/2.1/

	For more info see http://wahlers.com.br/claus/blog/?page_id=18
*/

/*
var swfUrl = "/flash/engine.swf";
var bgColor = "#ffffff";
var requiredFlashVersion = 6;
*/
var hasFlash = function() {
	if(navigator.appVersion.indexOf("MSIE") != -1 && navigator.appVersion.indexOf("Windows") != -1) {
		document.write('<script language="VBScript"\> \n');
		document.write('on error resume next \n');
		document.write('hasFlash = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & ' + requiredFlashVersion + '))) \n');
		document.write('<'+'/script\> \n');
		// If executed, the VBScript above checks for Flash and sets the hasFlash variable.
		// If VBScript is not supported it's value will still be undefined, so we'll run it
		// through another test. This will make sure even Opera identified as IE will be
		// tested
		if(window.hasFlash != null) {
			return window.hasFlash;
		};
	};
	if(navigator.mimeTypes &&
		navigator.mimeTypes["application/x-shockwave-flash"] &&
		navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) {
		var flashDescription = (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description;
		var flashVersion = parseInt(flashDescription.substr(flashDescription.indexOf(".") - 2, 2));
		return flashVersion >= requiredFlashVersion;
	};
	return false;
}();

// user agent detection
var sUA = navigator.userAgent.toLowerCase();
var bIsKHTML = sUA.indexOf("applewebkit") > -1 || sUA.indexOf("konqueror") > -1;
var bIsOpera = sUA.indexOf("opera") > -1;
var bIsGecko = !bIsKHTML && navigator.product != null && navigator.product.toLowerCase() == "gecko";
var bIsIE = sUA.indexOf("msie") > -1 && !bIsOpera && !bIsKHTML && !bIsGecko;
var nOperaVersion = 0;
if(bIsOpera) { nOperaVersion = new Number(sUA.match(/.*opera(\s|\/)(\d+\.\d+)/)[2]) };

if(hasFlash) {
	// make xhtml markup invisible
	if(document.documentElement) {
		document.documentElement.className = document.documentElement.className + " hasFlash";
	};
	// attach onload event
	if(window.attachEvent) {
		window.attachEvent("onload", enableFlash);
	} else if(document.addEventListener || window.addEventListener) {
		if(document.addEventListener) { document.addEventListener("load", enableFlash, false); };
		if(window.addEventListener) { window.addEventListener("load", enableFlash, false); };
	} else {
		if(typeof window.onload == "function") {
			var fOld = window.onload;
			window.onload = function() { fOld(); enableFlash(); };
		} else {
			window.onload = enableFlash;
		};
	};
};

function createElement(sTagName) {
	if(document.createElementNS && !bIsOpera) {
		return document.createElementNS("http://www.w3.org/1999/xhtml", sTagName);
	} else {
		return document.createElement(sTagName);
	};
};

function createObjectParameter(nodeObject, sName, sValue) {
	var node = document.createElement("param");
	node.setAttribute("name", sName);
	node.setAttribute("value", sValue);
	nodeObject.appendChild(node);
};

function enableFlash() {
	var nodeFlash;
	var node = document.getElementsByTagName("body")[0];

	// remove all the images to save load time
	function toArray (c){var a, k;a=new Array;for (k=0; k < c.length; ++k)a[k]=c[k];return a;}
    var images, img, altText;
    images=toArray(document.images);
    for (var i=0; i < images.length; ++i){
        img=images[i];
        altText=document.createTextNode(img.alt);
        img.parentNode.replaceChild(altText, img);
    }


	if(bIsOpera && nOperaVersion < 8) {
		//	Opera below 8 only support the object element,
		//	Opera versions below 7.60 use innerHTML:
		if(nOperaVersion < 7.60) {
			node.innerHTML += [
				'<object',
				'id="flash"',
				'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"',
				'codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' + requiredFlashVersion + ',0,0,0"',
				'width="100%"',
				'height="0"',
				'>',
				'<param name="movie" value="' + swfUrl + '" />',
				'<param name="quality" value="high" />',
				'<param name="bgcolor" value="' + bgColor + '" />',
				'<param name="flashvars" value="baseurl=' + location.href + '" />',
				'</object>',
			].join("\n");
		} else {
			// from 7.60 and up we use the DOM
			nodeFlash = createElement("object");
			nodeFlash.setAttribute("classid", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000");
			nodeFlash.setAttribute("codebase", "http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=" + requiredFlashVersion + ",0,0,0");
			createObjectParameter(nodeFlash, "movie", swfUrl);
			createObjectParameter(nodeFlash, "quality", "high");
			createObjectParameter(nodeFlash, "bgcolor", bgColor);
			createObjectParameter(nodeFlash, "flashvars", "baseurl=" + location.href);
		};
	} else {
		// Other browsers are given the embed element,
		//	for backwards compatibility reasons between different browser versions.
		if(bIsOpera) { swfUrl += "?baseurl=" + location.href; }
		nodeFlash = createElement("embed");
		nodeFlash.setAttribute("src", swfUrl);
		nodeFlash.setAttribute("quality", "high");
		nodeFlash.setAttribute("bgcolor", bgColor);
		nodeFlash.setAttribute("allowScriptAccess", "sameDomain");
		nodeFlash.setAttribute("type", "application/x-shockwave-flash");
		nodeFlash.setAttribute("pluginspage", "http://www.macromedia.com/go/getflashplayer");
		nodeFlash.setAttribute("flashvars", "baseurl=" + location.href);
	};
	//	This code is shared between the DOM-created objects
	if(!bIsOpera || nOperaVersion >= 7.60) {
		nodeFlash.setAttribute("id", "flash");
		nodeFlash.setAttribute("width", "100%");
		nodeFlash.setAttribute("height", "0");
		node.appendChild(nodeFlash);
	};
	//	Workaround to force KHTML-browsers to repaint the document.
	//	Additionally, IE for both Mac and PC need this.
	//	See: http://neo.dzygn.com/archive/2004/09/forcing-safari-to-repaint
	if(bIsKHTML || bIsIE) {
		node.innerHTML += "";
	};
}