var JS_PAGE_COBRAND;

if(!window.Msn)
{
	window.Msn={};
}

Msn.Flash = new function()
{
	var me=this;
	var flv=null;
	var d=document;
	var w=window;
	var aad=false;
	
	function E(id)
	{ 
		return d.getElementById(id);
	}

	function flVer()
	{
		if(flv===null)
		{
			flv=0;
			var i,f=null,p=w.navigator.plugins;
			
			if(p&&p.length)
			{
				f=(p["Shockwave Flash"] || p["Shockwave Flash 2.0"]);
				if(f && (i=f.description))
				{
					flv=parseInt(i.substring(i.indexOf('.')-2));
				}
			}
			else if(w.ActiveXObject)
			{
				for(i=15;i>2 && !f;--i)
				{
					eval("try{f=new ActiveXObject('ShockwaveFlash.ShockwaveFlash.'+i);}catch(e){}");
					if(f)
					{
						flv=i;
					}
				}
			}
		}
		return flv;
	}

	this.Version = function()
	{
		return flVer();
	};
	
	this.Build = function(f,v,wf,hf,id,pf,wmode)
	{
		var m=5;
		if(v)
		{
			var p=v.lastIndexOf(' ');
			if(p>0)
			{
				p=parseInt(v.substring(p));
			}
			else
			{
				p=parseInt(v);
			}
			m =(isNaN(p) ? m : p);
		}
		if(m<=flVer())
		{
			var defs = {movie:f,quality:'high'};
			var el='<object id="'+id+'obj" type="application/x-shockwave-flash" width="' + wf + '" height="' + hf + '" data="' + f + '">';
			if(pf)
			{
				for(var r in defs)
				{
					if(!pf[r])
					{
						pf[r]=defs[r];
					}
				}
			}
			else
			{
				pf=defs;
			}
			
			for(var q in pf)
			{
				if(pf[q])
				{
					if (q == "flashvars")
					{
						pf[q] = getCommaHandledQuery(pf[q]);
					}
					el+='<param name="'+q+'" value="'+pf[q]+'"/>';
				}
			}
			
			if(wmode)
			{
				el+= '<param name="wmode" value="' + wmode + '">';	// without this, pop-up menu will go underneath the video player
			}

			el += '</object>';
			var dv=(id?d.getElementById(id):null);
			if(dv)
			{
				dv.innerHTML=el;
			}
			else
			{
				d.write(el);
			}
		}
	}
	;return this;
};

Msn.Video = new function() {
    var me = this;
    this.OnVideoTitle = function(text, id) {
        var thisId = id + "_t";
        if (checkString(text) && checkString(thisId)) {
            var el = document.getElementById(thisId);
            if (el) {
                el.innerHTML = text;
            }
        }
    };

    this.OnLinkback = function(text, url, id) {
        var thisId = id + "_m";
        var c;
        var el = document.getElementById(thisId);
        var css;
        if (el) {
            el.innerHTML = "";
            for (c = 0; c <= text.length - 1; c++) {
                if (checkString(text[c]) && checkString(url[c])) {
                    css = (c == text.length - 1) ? "linkback last" : "linkback";
                    el.innerHTML = el.innerHTML + '<a class="' + css + '" href="' + url[c] + '">' + text[c] + '</a>';
                }
            }
        }
    };

    this.OnAdLoaded = function(adData, id) {
        var thisId = id + "_a";
        if (checkObject(adData) && checkString(adData.imageUrl) && checkArray(adData.clickUrls, 2) && checkString(thisId)) {
            var el = document.getElementById(thisId);
            if (el) {
                el.innerHTML = '<a class="ad" href="' + adData.clickUrls[1] + '"><img src="' + adData.imageUrl + '" width="300" height="60"></a>';
            }
        }
    };

    this.Build = function(id, dl, fv, w, h, wmode) {
        var el = document.getElementById(id);
        if (el) {
            var v = '<div class="video1"><h3 id="' + id + '_t"></h3><div id="' + id + '_p"><div>' + (dl ? dl : '') + '</div><a href="http://www.adobe.com/go/getflashplayer">This video requires the Adobe® Flash® Player. Download a free version of the player.</a></div><div id="' + id + '_m"></div><div id="' + id + '_a"></div></div>';
            el.innerHTML = v;
            Msn.Video.BuildPlayer(id, fv, w, h);
        }
    };

    this.BuildPlayer = function(id, fv, w, h, wmode) {
        var fvs = "";
		var frcategory = "unknown";
		var fgsite = "unknown";
		var fgsection = "unknown";

        for (var i in fv) {
            fvs += i + "=" + fv[i] + "&amp;";
        }

		// Tracking purpose	
		if(typeof(_nmsnOCategory)!='undefined'&&_nmsnOCategory.search('msnportalaucat')==0)    //3rd party variable
		{
			JS_OMNTR_CATEGORY=_nmsnOCategory.split(',')[0].substr(14);
		}
		if(typeof(JS_OMNTR_CATEGORY)!='undefined'&&JS_OMNTR_CATEGORY!='')
		{
			frcategory=JS_OMNTR_CATEGORY;
		}
		fvs += "fr="+frcategory+"&amp;"
		
		if(typeof(JS_OMNTR_SITE)!='undefined'&&JS_OMNTR_SITE!='')
		{
			fgsite=JS_OMNTR_SITE
		}else if(typeof(JS_SITE)!='undefined'&&JS_SITE!='')
		{
			fgsite=JS_SITE
		}else if(typeof(_nmsnSite)!='undefined'&&_nmsnSite!='')	//3rd party variable
		{
			fgsite=_nmsnSite
		}
		
		if(typeof(JS_OMNTR_VIDEO_SECTION)!='undefined'&&JS_OMNTR_VIDEO_SECTION!='')
		{
			fgsection=JS_OMNTR_VIDEO_SECTION
		}else if(typeof(JS_OMNTR_SECTION)!='undefined'&&JS_OMNTR_SECTION!='')
		{
			fgsection=JS_OMNTR_SECTION
		}else if(typeof(JS_SECTION)!='undefined'&&JS_SECTION!='')
		{
			fgsection=JS_SECTION
		}else if(typeof(_nmsnSection)!='undefined'&&_nmsnSection!='')
		{
			fgsection=_nmsnSection
		}		
		fvs += "fg="+fgsite+"^"+fgsection+"&amp;";
		
        fvs += addOptusBranding(fvs);

        //add flashvar for VAP integration
        fvs += addVAPVar(fvs);

        if (JS_SITEID == '2326' || JS_SITEID == '281' || JS_SITEID == '2339' || JS_SITEID == '2320') {
            var check = fvs.search("slatetime");
            if (check == -1)
                fvs += addVarforWWOS();
        }

        fvs += "ch=true&amp;playlistmin=2&amp;cbprefix=Msn.Video.&amp;cbdata=" + id;
        Msn.Flash.Build('http://images.soapbox.msn.com/flash/soapbox1_1.swf', '8', w ? w : 300, h ? h : 269, id + '_p', { allowScriptAccess: 'always', allowFullScreen: 'true', base: 'http://images.soapbox.msn.com/flash/soapbox1_1.swf', flashvars: fvs }, wmode);
    };

    //Appends the brand for the destination player depending on which copbranded header is running
    function addOptusBranding() {
        var additionalFlashVars = "";
        if (JS_PAGE_COBRAND && JS_PAGE_COBRAND.toLowerCase() == "optus") {
            additionalFlashVars += "brand=optus&amp;mh=OPTS&amp;";
        }
        else {
            additionalFlashVars += "brand=ninemsn&amp;";
        }
        return additionalFlashVars;
    }

    function addVAPVar(fvs) 
    {
        if (JS_SITEID == '4370') 
        {
            return "adDivs=videoAdsDiv,300,60;MSNVideoPlayer_mrec,300,250&amp;"
        }
        else 
        {
            return "adDivs=videoAdsDiv,300,60&amp;"
        }   
    }

    function addVarforWWOS() {
        return "eap=true&amp;slateTime=0&amp;";
    }

    function checkString(s) {
        return ((typeof (s) == "string") && (s.length > 0));
    }

    function checkObject(o) {
        return ((typeof (o) == "object") && (o !== null));
    }

    function checkArray(array, minLength) {
        var arrayCheck = (array instanceof Array);
        if (minLength !== '') {
            arrayCheck = arrayCheck && (array.length >= minLength);
        }
        return arrayCheck;
    }


    return this;
};

// This function is taken from msn_video_collection.js ! IMPORTANT
// This functions is called by the video player SWF object when a new ad is loaded
function OnAdLoaded(adData)
{
	var videAdsDiv = document.getElementById("videoAdsDiv");
    if((videAdsDiv!=null) && (adData != null) && adData.clickUrls && (adData.clickUrls.length >= 2)){
        videAdsDiv.innerHTML = '<a href="' + adData.clickUrls[1] + '"><img src="'+adData.imageUrl+'" alt="" /></a>';
    }
}

// return param value from the given query string
function getParamValue(param, query) {
	var value;
	var startPos = query.indexOf(param + "=");
	if(startPos > -1) {
		startPos += param.length+1;
		var endPos = query.indexOf("&",startPos+1);
		if(endPos < 0) {
			endPos = query.length;
		}
		value = query.substring(startPos,endPos);
	}
	return value;
}

// return vcq value without comma
function getCommmaLessVcq(param, vcq)
{
	// check if there is comma in this vcq string
	var paramValue = getParamValue(param, vcq);
	
	// no value for this param, nothing to do
	if(paramValue)
	{
		var paramArray = paramValue.split(",");
		
		// no comma, nothing to do
		if(paramArray.length > 1)
		{
			//  replace the found list having comma with the last item from the list
			vcq = vcq.replace(paramValue, paramArray[paramArray.length-1]);
		}
	}
	return vcq;
}

// return query string after handling comma in vcq
function getCommaHandledQuery(query)
{
	// only need to worry about vcq value in the query
	var vcq = getParamValue("vcq", query);
	
	// no vcq, nothing to do
	if(vcq)
	{
		// decode the vcq value so that we can get value for ns and tag, which we need to handle the comma separated list
		var decodedVcq = unescape(vcq);
		decodedVcq = getCommmaLessVcq("ns", decodedVcq);
		decodedVcq = getCommmaLessVcq("tag", decodedVcq);
		
		// from the query, replace only vcq value with the handled vcq 
		query = query.replace(vcq, escape(decodedVcq));
	}
	return query;
}