/**

 * FLASH GORDON

 * Version 1.0

 * hr@netural, ma, mf

 *

 * Usage:

 * <div id="altElementID">

 *     <a href="http://www.adobe.com/go/getflashplayer">

 *         <img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" /></a>

 * </div>

 * <script type="text/javascript" src="FlashGordon.js"></script>

 * <script type="text/javascript">new FlashGordon("myflash.swf", "flashDomID", 400, 468, 7, "altElementID").write();</script>

 */





/**

 * FlashGordon constructor

 * @param src path to .swf flash file

 * @param id the id for the object and embed tag to access the elements later

 * @param width 

 * @param height

 * @param reqVersion the required flash version

 * @param altElementId id for an alternative block element which will be hidden if flash works

 * @param urlParameter url parameter for the flash (ex: show=news), added to src attribute without "?"

 */

function FlashGordon(src,id,width,height,reqVersion,altElementId,urlParameter) {

    this.str = "";

    this.src = src;

    this.id = id;

    this.width = width;

    this.height = height;

    this.reqVersion = reqVersion;

    this.urlParameter = urlParameter;

    this.altElementId = document.getElementById(altElementId) ? document.getElementById(altElementId) : null;

}



FlashGordon.prototype = {

    

    /**

     * write the flash object/embed tag

     * @param bgcolor Background color for flash object

     * @wmode window mode (transparent|

     * @see http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_14201

     * @public

     */

    write: function(bgcolor, wmode) {

        flashVersion = this.getFlashVersion();



        if (flashVersion >= this.reqVersion) {

            bgcolor = bgcolor ? bgcolor : "#fff";

            wmode = wmode ? wmode : "transparent";

            this.str += "<object";

            this.writeParameter("classid","clsid:d27cdb6e-ae6d-11cf-96b8-444553540000");

            this.writeParameter("codebase","http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab");

            this.writeParameter("width",this.width);

            this.writeParameter("height",this.height);

            this.writeParameter("id",this.id);

            this.str += ">";

            this.writeObjectParameter("allowScriptAccess","sameDomain");

            this.writeObjectParameter("movie",this.src);

            this.writeObjectParameter("quality","high");

            this.writeObjectParameter("wmode",wmode);

            if (this.urlParameter)

            this.writeObjectParameter("FlashVars","&"+this.urlParameter);

            this.writeObjectParameter("bgcolor",bgcolor);

            this.writeObjectParameter("allowScriptAccess","sameDomain");

            this.str += "<embed"

            this.writeParameter("src",this.src+((this.urlParameter) ? "?"+this.urlParameter : ""));

            this.writeParameter("quality","high");

            this.writeParameter("wmode",wmode);

            this.writeParameter("bgcolor",bgcolor);

            this.writeParameter("width",this.width);

            this.writeParameter("height",this.height);

            this.writeParameter("name",this.id);

            this.writeParameter("allowScriptAccess","sameDomain");

            this.writeParameter("type","application/x-shockwave-flash");

            this.writeParameter("pluginspage","http://www.adobe.com/go/getflashplayer");

            this.str += " /></object>";

            document.write(this.str);

            

            if (this.altElementId) {

                this.altElementId.style.display = "none";

            }

        }

    },

    

    writeObjectParameter: function(param, value) {

        this.str += "<param name=\"" + param + "\" value=\"" + value + "\"/>";

    },

   

    writeParameter: function(param, value) {

        this.str += " " + param + "=\"" + value + "\"";

    },



    getFlashVersion: function() {

        var flashVersion = 0;

        var agent = navigator.userAgent.toLowerCase();

        if (agent.indexOf("mozilla/3") != -1 && agent.indexOf("msie") == -1) {

            return flashVersion;

        }

        if (navigator.plugins != null && navigator.plugins.length > 0) {

            var flashPlugin = navigator.plugins["Shockwave Flash"]; 

            if (typeof flashPlugin == "object") {

                for (i=25; i>0; i--) {

                    if (flashPlugin.description.indexOf(i + ".") != -1) {

                        flashVersion = i;

                    }

                }

            }

        } else if ((agent.indexOf("msie") != -1) && (parseInt(navigator.appVersion) >= 4) && (agent.indexOf("win") != -1) && (agent.indexOf("16bit") == -1)) {

            flashVersion = this.getIEFlashVersion();

        }

        return flashVersion;

    },

   

    getIEFlashVersion: function() {

        var swfObj, flashVersion;

        for (i=0; i<25; i++) {

            try {

                swfObj = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + i);

            } catch(e) {}

                if (swfObj) {

                flashVersion = swfObj.GetVariable("$version").split(" ")[1].split(",")[0];

            }

        }

        return (flashVersion);

    }

}