/*
 * Flash (http://jquery.lukelutman.com/plugins/flash) A jQuery plugin for
 * embedding Flash movies.
 * 
 * Version 1.0 November 9th, 2006
 * 
 * Copyright (c) 2006 Luke Lutman (http://www.lukelutman.com) Dual licensed
 * under the MIT and GPL licenses.
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.opensource.org/licenses/gpl-license.php
 * 
 * Inspired by: SWFObject (http://blog.deconcept.com/swfobject/) UFO
 * (http://www.bobbyvandersluis.com/ufo/) sIFR
 * (http://www.mikeindustries.com/sifr/)
 * 
 * IMPORTANT: The packed version of jQuery breaks ActiveX control activation in
 * Internet Explorer. Use JSMin to minifiy jQuery (see:
 * http://jquery.lukelutman.com/plugins/flash#activex).
 * 
 */
;
(function() {

	var $$;

	/**
	 * 
	 * @desc Replace matching elements with a flash movie.
	 * @author Luke Lutman
	 * @version 1.0.1
	 * 
	 * @name flash
	 * @param Hash
	 *            htmlOptions Options for the embed/object tag.
	 * @param Hash
	 *            pluginOptions Options for detecting/updating the Flash plugin
	 *            (optional).
	 * @param Function
	 *            replace Custom block called for each matched element if flash
	 *            is installed (optional).
	 * @param Function
	 *            update Custom block called for each matched if flash isn't
	 *            installed (optional).
	 * @type jQuery
	 * 
	 * @cat plugins/flash
	 * 
	 * @example $('#hello').flash({ src: 'hello.swf' });
	 * @desc Embed a Flash movie.
	 * 
	 * @example $('#hello').flash({ src: 'hello.swf' }, { version: 8 });
	 * @desc Embed a Flash 8 movie.
	 * 
	 * @example $('#hello').flash({ src: 'hello.swf' }, { expressInstall: true
	 *          });
	 * @desc Embed a Flash movie using Express Install if flash isn't installed.
	 * 
	 * @example $('#hello').flash({ src: 'hello.swf' }, { update: false });
	 * @desc Embed a Flash movie, don't show an update message if Flash isn't
	 *       installed.
	 * 
	 */
	$$ = jQuery.fn.flash = function(htmlOptions, pluginOptions, replace, update) {

		// Set the default block.
		var block = replace || $$.replace;

		// Merge the default and passed plugin options.
		pluginOptions = $$.copy($$.pluginOptions, pluginOptions);

		// Detect Flash.
		if (!$$.hasFlash(pluginOptions.version)) {
			// Use Express Install (if specified and Flash plugin 6,0,65 or
			// higher is installed).
			if (pluginOptions.expressInstall && $$.hasFlash(6, 0, 65)) {
				// Add the necessary flashvars (merged later).
				var expressInstallOptions = {
					flashvars : {
						MMredirectURL : location,
						MMplayerType : 'PlugIn',
						MMdoctitle : jQuery('title').text()
					}
				};
				// Ask the user to update (if specified).
			} else if (pluginOptions.update) {
				// Change the block to insert the update message instead of the
				// flash movie.
				block = update || $$.update;
				// Fail
			} else {
				// The required version of flash isn't installed.
				// Express Install is turned off, or flash 6,0,65 isn't
				// installed.
				// Update is turned off.
				// Return without doing anything.
				return this;
			}
		}

		// Merge the default, express install and passed html options.
		htmlOptions = $$.copy($$.htmlOptions, expressInstallOptions,
				htmlOptions);

		// Invoke $block (with a copy of the merged html options) for each
		// element.
		return this.each(function() {
			block.call(this, $$.copy(htmlOptions));
		});

	};
	/**
	 * 
	 * @name flash.copy
	 * @desc Copy an arbitrary number of objects into a new object.
	 * @type Object
	 * 
	 * @example $$.copy({ foo: 1 }, { bar: 2 });
	 * @result { foo: 1, bar: 2 };
	 * 
	 */
	$$.copy = function() {
		var options = {}, flashvars = {};
		for ( var i = 0; i < arguments.length; i++) {
			var arg = arguments[i];
			if (arg == undefined)
				continue;
			jQuery.extend(options, arg);
			// don't clobber one flash vars object with another
			// merge them instead
			if (arg.flashvars == undefined)
				continue;
			jQuery.extend(flashvars, arg.flashvars);
		}
		options.flashvars = flashvars;
		return options;
	};
	/*
	 * @name flash.hasFlash @desc Check if a specific version of the Flash
	 * plugin is installed @type Boolean
	 * 
	 */
	$$.hasFlash = function() {
		// look for a flag in the query string to bypass flash detection
		if (/hasFlash\=true/.test(location))
			return true;
		if (/hasFlash\=false/.test(location))
			return false;
		var pv = $$.hasFlash.playerVersion().match(/\d+/g);
		var rv = String( [ arguments[0], arguments[1], arguments[2] ]).match(
				/\d+/g)
				|| String($$.pluginOptions.version).match(/\d+/g);
		for ( var i = 0; i < 3; i++) {
			pv[i] = parseInt(pv[i] || 0);
			rv[i] = parseInt(rv[i] || 0);
			// player is less than required
			if (pv[i] < rv[i])
				return false;
			// player is greater than required
			if (pv[i] > rv[i])
				return true;
		}
		// major version, minor version and revision match exactly
		return true;
	};
	/**
	 * 
	 * @name flash.hasFlash.playerVersion
	 * @desc Get the version of the installed Flash plugin.
	 * @type String
	 * 
	 */
	$$.hasFlash.playerVersion = function() {
		// ie
		try {
			try {
				// avoid fp6 minor version lookup issues
				// see:
				// http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/
				var axo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.6');
				try {
					axo.AllowScriptAccess = 'always';
				} catch (e) {
					return '6,0,0';
				}
			} catch (e) {
			}
			return new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
					.GetVariable('$version').replace(/\D+/g, ',').match(
							/^,?(.+),?$/)[1];
			// other browsers
		} catch (e) {
			try {
				if (navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) {
					return (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description
							.replace(/\D+/g, ",").match(/^,?(.+),?$/)[1];
				}
			} catch (e) {
			}
		}
		return '0,0,0';
	};
	/**
	 * 
	 * @name flash.htmlOptions
	 * @desc The default set of options for the object or embed tag.
	 * 
	 */
	$$.htmlOptions = {
		height : 240,
		flashvars : {},
		pluginspage : 'http://www.adobe.com/go/getflashplayer',
		src : '#',
		type : 'application/x-shockwave-flash',
		width : 320
	};
	/**
	 * 
	 * @name flash.pluginOptions
	 * @desc The default set of options for checking/updating the flash Plugin.
	 * 
	 */
	$$.pluginOptions = {
		expressInstall : false,
		update : true,
		version : '6.0.65'
	};
	/**
	 * 
	 * @name flash.replace
	 * @desc The default method for replacing an element with a Flash movie.
	 * 
	 */
	$$.replace = function(htmlOptions) {
		this.innerHTML = '<div class="alt">' + this.innerHTML + '</div>';
		jQuery(this).addClass('flash-replaced').prepend(
				$$.transform(htmlOptions));
	};
	/**
	 * 
	 * @name flash.update
	 * @desc The default method for replacing an element with an update message.
	 * 
	 */
	$$.update = function(htmlOptions) {
		var url = String(location).split('?');
		url.splice(1, 0, '?hasFlash=true&');
		url = url.join('');
		var msg = '<p>This content requires the Flash Player. <a href="http://www.adobe.com/go/getflashplayer">Download Flash Player</a>. Already have Flash Player? <a href="' + url + '">Click here.</a></p>';
		this.innerHTML = '<span class="alt">' + this.innerHTML + '</span>';
		jQuery(this).addClass('flash-update').prepend(msg);
	};
	/**
	 * 
	 * @desc Convert a hash of html options to a string of attributes, using
	 *       Function.apply().
	 * @example toAttributeString.apply(htmlOptions)
	 * @result foo="bar" foo="bar"
	 * 
	 */
	function toAttributeString() {
		var s = '';
		for ( var key in this)
			if (typeof this[key] != 'function')
				s += key + '="' + this[key] + '" ';
		return s;
	}
	;
	/**
	 * 
	 * @desc Convert a hash of flashvars to a url-encoded string, using
	 *       Function.apply().
	 * @example toFlashvarsString.apply(flashvarsObject)
	 * @result foo=bar&foo=bar
	 * 
	 */
	function toFlashvarsString() {
		var s = '';
		for ( var key in this)
			if (typeof this[key] != 'function')
				s += key + '=' + encodeURIComponent(this[key]) + '&';
		return s.replace(/&$/, '');
	}
	;
	/**
	 * 
	 * @name flash.transform
	 * @desc Transform a set of html options into an embed tag.
	 * @type String
	 * 
	 * @example $$.transform(htmlOptions)
	 * @result <embed src="foo.swf" ... />
	 * 
	 * Note: The embed tag is NOT standards-compliant, but it works in all
	 * current browsers. flash.transform can be overwritten with a custom
	 * function to generate more standards-compliant markup.
	 * 
	 */
	$$.transform = function(htmlOptions) {
		htmlOptions.toString = toAttributeString;
		if (htmlOptions.flashvars)
			htmlOptions.flashvars.toString = toFlashvarsString;
		return '<embed ' + String(htmlOptions) + '/>';
	};

	/**
	 * 
	 * Flash Player 9 Fix
	 * (http://blog.deconcept.com/2006/07/28/swfobject-143-released/)
	 * 
	 */
	if (window.attachEvent) {
		window.attachEvent("onbeforeunload", function() {
			__flash_unloadHandler = function() {
			};
			__flash_savedUnloadHandler = function() {
			};
		});
	}

})();