/*
 * FlashObject embed
 * http://blog.deconcept.com/2004/10/14/web-standards-compliant-javascript-flash-detect-and-embed/
 *
 * by Geoff Stearns (geoff@deconcept.com, http://www.deconcept.com/)
 *
 * v1.0.7 - 11-17-2004
 *
 * Create and write a flash movie to the page, includes detection
 */
 
FlashObject = function(swf, id, w, h, ver, c) {
 this.swf = swf;
 this.id = id;
 this.width = w;
 this.height = h;
 this.version = ver || 6; // default to 6
 this.align = "middle"; // default to middle
 this.redirect = "";
 this.sq = document.location.search.split("?")[1] || "";
 this.altTxt = "Please <a href='http://www.macromedia.com/go/getflashplayer'>upgrade your Flash Player</a>.";
 this.bypassTxt = "<p>Already have Flash Player? <a href='?detectflash=false&"+ this.sq +"'>Click here if you have Flash Player "+ this.version +" installed</a>.</p>";
 this.params = new Object();
 this.variables = new Object();
 if (c) this.color = this.addParam('bgcolor', c);
 this.addParam('quality', 'high'); // default to high
 this.doDetect = getQueryParamValue('detectflash');
}

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

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

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

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

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

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

FlashObject.prototype.getParamTags = function() {
    var paramTags = "";
    for (var param in this.getParams()) {
        paramTags += '<param name="' + param + '" value="' + this.getParam(param) + '" />';
    }
    if (paramTags == "") {
        paramTags = null;
    }
    return paramTags;
}

FlashObject.prototype.getHTML = function() {
    var flashHTML = "";
    if (window.ActiveXObject && navigator.userAgent.indexOf('Mac') == -1) { // 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() != null) {
            flashHTML += this.getParamTags();
        }
        if (this.getVariablePairs() != null) {
            flashHTML += '<param name="flashVars" value="' + this.getVariablePairs() + '" />';
        }
        flashHTML += '</object>';
    }
    else { // Everyone else
        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() != null) {
            flashHTML += ' flashVars="' + this.getVariablePairs() + '"';
        }
        flashHTML += '></embed>';
    }
    return flashHTML; 
}

FlashObject.prototype.getVariablePairs = function() {
    var variablePairs = new Array();
    for (var name in this.getVariables()) {
        variablePairs.push(name + "=" + escape(this.getVariable(name)));
    }
    if (variablePairs.length > 0) {
        return variablePairs.join("&");
    }
    else {
        return null;
    }
}

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

function getFlashVersion() {
 var flashversion = 0;
 if (navigator.plugins && navigator.plugins.length) {
  var x = navigator.plugins["Shockwave Flash"];
  if(x){
   if (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) { 
 if (getFlashVersion() >= ver) {
  return true;
 } else {
  return false;
 }
}

// get value of querystring param
function getQueryParamValue(param) {
 var q = document.location.search;
 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;
 }
}

/*
////////////////使用方法/////////////////////////
<script src="flashobject.js" type="text/javascript"></script>
<script type="text/javascript">

 var flashObject = new FlashObject("water_with_f8.swf", "fm_water_with_f8", 400, 300, 6, "");
 flashObject.write();

</script>
*/