
QTObject = function(mov, id, w, h) {
this.mov = mov;
this.id = id;
this.width = w;
this.height = h;
this.redirect = "";
this.sq = document.location.search.split("?")[1] || "";
this.altTxt = "This content requires the QuickTime Plugin. <a href='http://www.apple.com/quicktime/download/'>Download QuickTime Player</a>.";
this.bypassTxt = "<p>Already have QuickTime Player? <a href='?detectqt=false&"+ this.sq +"'>Click here.</a></p>";
this.params = new Object();
this.doDetect = getQueryParamValue('detectqt');
}

QTObject.prototype.addParam = function(name, value) {
this.params[name] = value;
}

QTObject.prototype.getParams = function() {
    return this.params;
}

QTObject.prototype.getParam = function(name) {
    return this.params[name];
}

QTObject.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;
}

QTObject.prototype.getHTML = function() {
    var qtHTML = "";
if (navigator.plugins && navigator.plugins.length) { // not ie
        qtHTML += '<embed type="video/quicktime" src="' + this.mov + '" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '"';
        for (var param in this.getParams()) {
            qtHTML += ' ' + param + '="' + this.getParam(param) + '"';
        }
        qtHTML += '></embed>';
    }
    else { // pc ie
        qtHTML += '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '">';
        this.addParam("src", this.mov);
        if (this.getParamTags() != null) {
            qtHTML += this.getParamTags();
        }
        qtHTML += '</object>';
    }
    return qtHTML;
}


QTObject.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;
    }
}

QTObject.prototype.write = function(elementId) {
if(isQTInstalled() || 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 isQTInstalled() {
var qtInstalled = false;
qtObj = false;
if (navigator.plugins && navigator.plugins.length) {
for (var i=0; i < navigator.plugins.length; i++ ) {
         var plugin = navigator.plugins[i];
         if (plugin.name.indexOf("QuickTime") > -1) {
	 qtInstalled = true;
         }
      }
      } else {
      execScript('on error resume next: qtObj = IsObject(CreateObject("QuickTimeCheckObject.QuickTimeCheck.1"))','VBScript');
      qtInstalled = qtObj;
      }
      return qtInstalled;
}

/* 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 "";
}
}
