/* ObjectSwap - Bypasses the new ActiveX Activation requirement in Internet Explorer by swapping existing ActiveX objects on the page with the same objects. Can also be used for Flash version detection by adding the param:  
<param name="flashVersion" value="8" /> to the object tag.  
  
Author: Karina Steffens, www.neo-archaic.net  
Created: April 2006  
Changes and bug fixes: May 2006  
Bug fixes: June 2006  
Changes: October 2006 (Included Opera9 and excluded IE5.5)  
*/   
   
//Check if the browser is InternetExplorer, and if it supports the getElementById DOM method   
var ie = (document.defaultCharset && document.getElementById && !window.home);   
var opera9 = false;   
if (ie){   
    //Check for ie 5.5 and exclude it from the script   
    var ver=navigator.appVersion.split("MSIE")   
    ver=parseFloat(ver[1])   
    ie = (ver >=6)   
}else if (navigator.userAgent.indexOf("Opera")!=-1) {   
    //Check for Opera9 and include it in the ObjectSwap   
    var versionindex=navigator.userAgent.indexOf("Opera")+6   
    if (parseInt(navigator.userAgent.charAt(versionindex))>=9)   
    opera9 = true;   
}   
//Perform ObjectSwap if the browser is IE or Opera (if not just check flashVersion)   
var oswap = (ie || opera9)   
   
//Hide the object to prevent it from loading twice   
if (oswap){   
    document.write ("<style id='hideObject'> object{display:none;} </style>");   
}   
   
/*Replace all flash objects on the page with the same flash object,   
by rewriting the outerHTML values  
This bypasses the new IE ActiveX object activation issue*/   
objectSwap = function(){   
    if (!document.getElementsByTagName){   
        return;   
    }   
    //An array of ids for flash detection   
    var stripQueue = [];   
    //Get a list of all ActiveX objects   
    var objects = document.getElementsByTagName('object');   
    for (var i=0; i<objects.length; i++){               
        var o = objects[i];       
        var h = o.outerHTML;   
        //The outer html omits the param tags, so we must retrieve and insert these separately   
        var params = "";   
        var hasFlash = true;   
        for (var j = 0; j<o.childNodes.length; j++) {   
            var p = o.childNodes[j];   
            if (p.tagName == "PARAM"){   
                //Check for version first - applies to all browsers   
                //For this to work, a new param needs to be included in the object with the name "flashVersion" eg:   
                //<param name="flashVersion" value="7" />   
                if (p.name == "flashVersion"){   
                    hasFlash = detectFlash(p.value);   
                    if (!hasFlash){   
                        //Add the objects id to the list (create a new id if there's isn't one already)   
                        o.id = (o.id == "") ? ("stripFlash"+i) : o.id;   
                        stripQueue.push(o.id);   
                        break;   
                    }   
                }    
                params += p.outerHTML;                  
            }   
        }       
        if (!hasFlash){   
            continue;   
        }           
        //Only target internet explorer   
        if (!oswap){   
            continue;   
        }    
        //Avoid specified objects, marked with a "noswap" classname   
        if (o.className.toLowerCase().indexOf ("noswap") != -1){   
            continue;   
        }    
//Get the tag and attributes part of the outer html of the object   
        var tag = h.split(">")[0] + ">";               
        //Add up the various bits that comprise the object:   
        //The tag with the attributes, the params and it's inner html   
        var newObject = tag + params + o.innerHTML + " </OBJECT>";       
        //And rewrite the outer html of the tag    
        o.outerHTML = newObject;   
    }   
    //Strip flash objects   
    if (stripQueue.length) {   
        stripFlash(stripQueue)   
    }   
    //Make the objects visible again   
    if (oswap){   
        document.getElementById("hideObject").disabled = true;   
    }   
}   
   
detectFlash = function(version){   
    if(navigator.plugins && navigator.plugins.length){   
        //Non-IE flash detection.   
        var plugin = navigator.plugins["Shockwave Flash"];   
        if (plugin == undefined){   
            return false;   
        }   
        var ver = navigator.plugins["Shockwave Flash"].description.split(" ")[2];   
        return (Number(ver) >= Number(version))   
    } else if (ie && typeof (ActiveXObject) == "function"){   
    //IE flash detection.   
        try{   
            var flash = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + version);   
            return true;   
        }   
        catch(e){   
            return false;   
        }   
    }   
    //Catchall - skip detection   
    return true;   
}   
//Loop through an array of ids to strip   
//Replace the object by a div tag containing the same innerHTML.   
//To display an alternative image, message for the user or a link to the flash installation page, place it inside the object tag.     
//For the usual object/embed pairs it needs to be enclosed in comments to hide from gecko based browsers.   
stripFlash = function (stripQueue){   
    if (!document.createElement){   
        return;   
    }   
    for (var i=0; i<stripQueue.length; i++){   
        var o = document.getElementById(stripQueue[i]);   
        var newHTML = o.innerHTML;       
        //Strip the comments   
        newHTML = newHTML.replace(/<!--\s/g, "");   
        newHTML = newHTML.replace(/\s-->/g, "");   
        //Neutralise the embed tag   
        newHTML = newHTML.replace(/<embed/gi, "<span");           
        //Create a new div element with properties from the object   
        var d = document.createElement("div");   
        d.innerHTML = newHTML;   
        d.className = o.className;   
        d.id = o.id;   
        //And swap the object with the new div   
        o.parentNode.replaceChild(d, o);   
    }   
}   
   
//Initiate the function without conflicting with the window.onload event of any preceding scripts   
var tempFunc = window.onload;   
window.onload = function(){   
    if (typeof (tempFunc) == "function"){   
        try{   
            tempFunc();   
        } catch(e){}   
    }   
    objectSwap();   
}