function toggleVidThumb(thmb)
{
	if (thmb == "eric_dyno")
	{
		document.getElementById("top_gear_thumb").style.display = "none";
		document.getElementById("top_gear_thumb_text").style.display = "none";
		document.getElementById("eric_dyno_thumb").style.display = "";
		document.getElementById("eric_dyno_thumb_text").style.display = "";
	}
	else if (thmb == "top_gear")
	{
		
		document.getElementById("eric_dyno_thumb").style.display = "none";
		document.getElementById("eric_dyno_thumb_text").style.display = "none";
		document.getElementById("top_gear_thumb").style.display = "";
		document.getElementById("top_gear_thumb_text").style.display = "";
	}
}

function setVidThumb()
{	
	var myDiv = document.getElementById("video_table");
	var thumbArr = myDiv.getElementsByTagName("span");
	var thumbArrLen = thumbArr.length;
	var thumbName = "video_thumb";
	var thumbTextName = "video_thumb_text";
	var f=0;
	while (f<thumbArrLen)
	{
		document.getElementById(thumbName+f).style.display = "none";
		document.getElementById(thumbTextName+f).style.display = "none";
		f=f+1;
	}
	document.getElementById("video_thumb0").style.display = "";
	document.getElementById("video_thumb_text0").style.display = "";
	document.getElementById("left_video_thumb_arrow_link").style.display = "none";
	document.getElementById("left_video_thumb_arrow").style.display = "";
	document.getElementById("right_video_thumb_arrow_link").style.display = "";
	document.getElementById("right_video_thumb_arrow").style.display = "none";
}

function toggleVidsThumb(dir)
{
	var myDiv = document.getElementById("video_table");
	var thumbArr = myDiv.getElementsByTagName("span");
	var thumbArrLen = thumbArr.length;
	var thumbDis = "";
	var thumbName = "video_thumb";
	var thumbTextName = "video_thumb_text";
	var nextThumb;
	if (dir == "right")
	{		
		for (i=0; i<thumbArrLen; i++)
		{
			thumbDis = document.getElementById(thumbName+i).style.display;
			//alert("the " + i + " element visibility is " + thumbDis + ".");
			if (thumbDis == "")
			{
				if (i==thumbArrLen-1)
				{
					//alert("I cant change thumbs, Im at the end");
				}
				else
				//alert("Im going to set the " + (i+1) + " as the one to set as visible later");
				nextThumb = i+1;
				break;
			}
		}
		for (i=0; i<thumbArrLen; i++)
		{
			//alert("going to make the " + i + " thumb disappear.");
			document.getElementById(thumbName+i).style.display = "none";
			document.getElementById(thumbTextName+i).style.display = "none";
		}
		//alert("going to make the " + nextThumb + " thumb appear.");
		document.getElementById(thumbName+nextThumb).style.display = "";
		document.getElementById(thumbTextName+nextThumb).style.display = "";
	}
	else if (dir == "left")
	{		
		for (i=thumbArrLen-1; i>=0; i--)
		{
			thumbDis = document.getElementById(thumbName+i).style.display;
			//alert("the " + i + " element visibility is " + thumbDis + ".");
			if (thumbDis == "")
			{
				if (i==0)
				{
					//alert("I cant change thumbs, Im at the end");
				}
				else
				//alert("Im going to set the " + (i-1) + " as the one to set as visible later");
				nextThumb = i-1;
				break;
			}
		}
		for (i=thumbArrLen-1; i>=0; i--)
		{
			//alert("going to make the " + i + " thumb disappear.");
			document.getElementById(thumbName+i).style.display = "none";
			document.getElementById(thumbTextName+i).style.display = "none";
		}
		//alert("going to make the " + nextThumb + " thumb appear.");
		document.getElementById(thumbName+nextThumb).style.display = "";
		document.getElementById(thumbTextName+nextThumb).style.display = "";
	}
	var thumbArrLenMin = thumbArrLen-1;
	if (document.getElementById(thumbName+0).style.display == "")
	{
		document.getElementById("left_video_thumb_arrow_link").style.display = "none";
		document.getElementById("left_video_thumb_arrow").style.display = "";
	}
	else
	{
		document.getElementById("left_video_thumb_arrow_link").style.display = "";
		document.getElementById("left_video_thumb_arrow").style.display = "none";
	}
	if (document.getElementById(thumbName+thumbArrLenMin).style.display == "")
	{
		document.getElementById("right_video_thumb_arrow_link").style.display = "none";
		document.getElementById("right_video_thumb_arrow").style.display = "";
	}
	else
	{
		document.getElementById("right_video_thumb_arrow_link").style.display = "";
		document.getElementById("right_video_thumb_arrow").style.display = "none";
		
	}
}