var pos = window.document.URL.indexOf("gallery");

if (pos > 0 && SM) {
        var thisURL = window.document.URL ;
	SM.buttons.FacebookButton = new YAHOO.widget.Button({
		id: 'Share on Facebook',
		label: 'Share on Facebook',
		container: 'altViews',
		type: 'link',
		href: 'http://www.facebook.com/share.php?u='+thisURL+'&t=SmugMug+Album',
		target: '_blank',
		className: 'sm-button sm-button-small facebookButton glyphButton menuButton share_button'
	});

}


// ------------------------------------------------------------------------
// Code to insert a download button 
// 
// Works for any gallery that has originals enabled
// And right-click protection off
// And gallery is in smugmug or smugmug small view
// ------------------------------------------------------------------------

function IsAnySmugmugView()
{
    return(YD.hasClass(document.body, "smugmug") || YD.hasClass(document.body, "smugmug_small"));
}

function IsGalleryPage()
{
	return(YD.hasClass(document.body, "galleryPage"));
}

onPhotoShow.subscribe(ProcessDownloadButton);

function ProcessDownloadButton()
{
	// set onlyInGalleries to true if you only want a download button in gallery views
	// set onlyInGalleries to false if you want a download button in other views too like (search, keywords, date, etc...)
	var onlyInGalleries = false;
	if (IsAnySmugmugView() && (IsGalleryPage() || !onlyInGalleries))
	{
		if (photoInfo[ImageID].albumOriginals && !photoInfo[ImageID]['protected'] && (photoInfo[ImageID].Format !== "MP4"))
		{
			var downloadParent = "cartButtonsWrapper";
			if (!document.getElementById("cartButtonsWrapper"))
			{
				downloadParent = "altViews";
			}
			InsertDownloadButton(downloadParent);
		}
		else
		{
			// disable the button
			var downloadButton = YAHOO.widget.Button.getButton("downloadButtonId");
			if (downloadButton)
			{
				downloadButton.set("disabled", true);
			}
		}
	}
}

function InsertDownloadButton(parentId)
{
	// now add the download button
	var parentDiv = document.getElementById(parentId);
	var downloadButton = document.getElementById("downloadButtonId");
	if (downloadButton)
	{
		// make sure it is enabled
		YAHOO.widget.Button.getButton("downloadButtonId").set("disabled", false);
	}
	else if (parentDiv)
	{
		var downloadButtonInfo =
		{
			id: "downloadButtonId",
			label: "Download Image...",
			container: parentDiv,
			type: "button",
			className: "sm-button sm-button-small themesButton glyphButton",
			onclick: { fn: InitiateDownloadImage }
		};
		
		var dButtonObj = new YAHOO.widget.Button(downloadButtonInfo);
	}
}

function InitiateDownloadImage()
{
	// construct the download URL
	window.location = "/photos/" + ImageID + "_" + ImageKey + "-D.jpg";
}