/*
* FlashObject embed
* by Geoff Stearns (geoff@deconcept.com, http://www.deconcept.com/)
*
* v1.1.0 - 03-31-2005
*
* writes the embed code for a flash movie, includes plugin detection
*
* Usage:
*
*	myFlash = new FlashObject("path/to/swf.swf", "swfid", "width", "height", flashversion, "backgroundcolor");
*	myFlash.write("objId");
*
* for best practices, see:
*  http://blog.deconcept.com/2005/03/31/proper-flash-embedding-flashobject-best-practices/
*
*/

var FlashObject = function (swf, id, w, h, ver, c) {
    this.swf = swf;
    this.id = id;
    this.width = w;
    this.height = h;
    this.version = ver;
    this.align = "middle";

    this.params = new Object();
    this.variables = new Object();

    this.redirect = "";
    this.sq = document.location.search.split("?")[1] || "";
    this.bypassTxt = "<p>Already have Macromedia Flash Player? <a href='?detectflash=false&" + this.sq + "'>Click here if you have Flash Player " + this.version + " installed</a>.</p>";

    if (c) this.color = this.addParam('bgcolor', c);
    this.addParam('quality', 'high'); // default to high
    this.doDetect = getQueryParamValue('detectflash');
}

var FOP = FlashObject.prototype;

FOP.addParam = function (name, value) { this.params[name] = value; }

FOP.getParams = function () { return this.params; }

FOP.getParam = function (name) { return this.params[name]; }

FOP.addVariable = function (name, value) { this.variables[name] = value; }

FOP.getVariable = function (name) { return this.variables[name]; }

FOP.getVariables = function () { return this.variables; }

FOP.getParamTags = function () {
    var paramTags = "";
    for (var param in this.getParams()) {
        paramTags += '<param name="' + param + '" value="' + this.getParam(param) + '" />';
    }
    return (paramTags == "") ? false : paramTags;
}

FOP.getHTML = function () {
    var flashHTML = "";
    if (navigator.plugins && navigator.mimeTypes.length) { // netscape plugin architecture
        flashHTML += '<embed type="application/x-shockwave-flash" src="' + this.swf + '" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '" align="' + this.align + '"';
        for (var param in this.getParams()) {
            flashHTML += ' ' + param + '="' + this.getParam(param) + '"';
        }
        if (this.getVariablePairs()) {
            flashHTML += ' flashVars="' + this.getVariablePairs() + '"';
        }
        flashHTML += '></embed>';
    } else { // PC IE
        flashHTML += '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '" align="' + this.align + '">';
        flashHTML += '<param name="movie" value="' + this.swf + '" />';
        if (this.getParamTags()) {
            flashHTML += this.getParamTags();
        }
        if (this.getVariablePairs() != null) {
            flashHTML += '<param name="flashVars" value="' + this.getVariablePairs() + '" />';
        }
        flashHTML += '</object>';
    }
    return flashHTML;
}

FOP.getVariablePairs = function () {
    var variablePairs = new Array();
    for (var name in this.getVariables()) {
        variablePairs.push(name + "=" + escape(this.getVariable(name)));
    }
    return (variablePairs.length > 0) ? variablePairs.join("&") : false;
}

FOP.write = function (elementId) {
    if (detectFlash(this.version) || this.doDetect == 'false') {
        if (elementId) {
            el = document.getElementById(elementId)
            if (el) el.innerHTML = this.getHTML();
        } else {
            document.write(this.getHTML());
        }
    } else {
        if (this.redirect != "") {
            document.location.replace(this.redirect);
        } else if (this.altTxt) {
            if (elementId) {
                document.getElementById(elementId).innerHTML = this.altTxt + "" + this.bypassTxt;
            } else {
                document.write(this.altTxt + "" + this.bypassTxt);
            }
        }
    }
}

/* ---- detection functions ---- */
function getFlashVersion() {
    var flashversion = 0;
    if (navigator.plugins && navigator.mimeTypes.length) {
        var x = navigator.plugins["Shockwave Flash"];
        if (x && x.description) {
            var y = x.description;
            flashversion = y.charAt(y.indexOf('.') - 1);
        }
    } else {
        result = false;
        for (var i = 15; i >= 3 && result != true; i--) {
            execScript('on error resume next: result = IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.' + i + '"))', 'VBScript');
            flashversion = i;
        }
    }
    return flashversion;
}

function detectFlash(ver) { return (getFlashVersion() >= ver) ? true : false; }

// get value of query string param
function getQueryParamValue(param) {
    var q = document.location.search || document.location.href.split("#")[1];
    if (q) {
        var detectIndex = q.indexOf(param + "=");
        var endIndex = (q.indexOf("&", detectIndex) > -1) ? q.indexOf("&", detectIndex) : q.length;
        if (q.length > 1 && detectIndex > -1) {
            return q.substring(q.indexOf("=", detectIndex) + 1, endIndex);
        } else {
            return "";
        }
    }
}

/* add Array.push if needed */
if (Array.prototype.push == null) {
    Array.prototype.push = function (item) { this[this.length] = item; return this.length; }
}