var currentSelected = "";

function selectSpeaker(anchor, keepSelected, id)
{	
	var s = anchor.childNodes[0];	
	if (s)
	{
		if (keepSelected)
		{
			deselectSpeaker(null);
			currentSelected = s.id;
			//showSpeakerInfo(currentSelected);
			showSpeakerInfo(id);
		}
		
		if (s.src.indexOf("-color") < 0) s.src = s.src.replace(".jpg", "-color.jpg");
		else if (!keepSelected && s.id != currentSelected) deselectSpeaker(s.id);
	}
}

function deselectSpeaker(speakerID)
{
	var s;
	if (speakerID != null && speakerID.length > 0)
	{
		s = document.getElementById(speakerID);
	}
	else
	{
		s = document.getElementById(currentSelected);
	}
	if (s) s.src = s.src.replace("-color", "");
}

function showSpeakerInfo(speakerid)
{   
	cfo_2008.Speakers.FetchSpeakerInfo(speakerid, handleSpeakerInfo);
}

function handleSpeakerInfo(res)
{
	if (res)
	{
		var d = document.getElementById("speaker-description");
		if (d) d.innerHTML = res.value;
	}
	else alert("no value");
}

function preload()
{
	var sl = document.getElementById("speaker-list");
	if (sl)
	{
		var imgs = sl.getElementsByTagName("img");
		var list = "";
		var preload = new Image();
		for (var i=0; i<imgs.length; i++)
		{
			preload.src = imgs[i].src.replace(".jpg", "-color.jpg");
		}
	}
}