var media_viewer_current_pos = 0;
var media_viewer_tab = null;

function media_viewer(dir)
{
	var tab = media_viewer_tab;
	var prev = $('mediaPreviewMiniPrev');
	var next = $('mediaPreviewMiniNext');
	var disp = $('mediaPreviewDisplay');
	var desc = $('mediaPreviewDesc');
	
	var next_pos = media_viewer_current_pos;
	if (dir == "prev" && media_viewer_current_pos >= 0)
		media_viewer_current_pos--;
	if (dir == "next" && media_viewer_current_pos < tab.length)
		media_viewer_current_pos++;

	if (media_viewer_current_pos > 0)
		prev.innerHTML = "<a href=\"javascript:media_viewer('prev');\"><img style=\"border:1px solid #c7d9e7; margin:0px; padding:0px;\" src='"+tab[(media_viewer_current_pos - 1)][0]+"'/></a>";
	else
		prev.innerHTML = "";

	if (media_viewer_current_pos < tab.length - 1)
		next.innerHTML = "<a href=\"javascript:media_viewer('next');\"><img style=\"border:1px solid #c7d9e7; margin:0px; padding:0px;\" src='"+tab[(media_viewer_current_pos + 1)][0]+"'/></a>";
	else
		next.innerHTML = "";

	if (tab[media_viewer_current_pos][3] == "video")
	{
		var str = '<object type="application/x-shockwave-flash" data="'+main_path+'adm/players/lecteur-Album.swf" style="margin-top:5px;width:365px; height:265px;"><param name="movie" value="'+main_path+'adm/players/lecteur-Album.swf"><param name="FlashVars" value="flv='+tab[media_viewer_current_pos][1]+'&amp;showvolume=1&amp;showtime=1&amp;showstop=1&amp;buttonovercolor=FF0000&amp;autoplay=1&amp;margin=0&amp;loadingcolor=FF0000&amp;sliderovercolor=990000&amp;width=365&amp;height=265&amp;buffer=10"><param name="wmode" value="transparent"></object>';
		disp.innerHTML = str;
	}
	else
	{
		disp.innerHTML = "<img src='"+tab[media_viewer_current_pos][1]+"' style='border:0px solid #000000; display:block; margin:auto;' />";
	}
	
	if (tab[media_viewer_current_pos][2] == "")
	{
		$('mediaPreviewDescTr').style.display = "none";
	}
	else
	{
		$('mediaPreviewDescTr').style.display = "";
		desc.innerHTML = tab[media_viewer_current_pos][2];
	}
}