function open_video_320_240 (a)
{
	var url = a.getAttribute("href");
	video_w = window.open(url, "video", "scrollbars=no,resizeable=no,width=320,height=258,menubar=no,location=no,status=no");
}

function open_video_360_270 (a)
{
	var url = a.getAttribute("href");
	video_w = window.open(url, "video", "scrollbars=no,resizeable=no,width=360,height=288,menubar=no,location=no,status=no");
}

function open_atmosphere (a)
{
	var url = a.getAttribute("href");
	climate_w = window.open(url, "atmosphere", "scrollbars=no,resizeable=no,width=770,height=636,menubar=no,location=no,status=no");
}

function open_timeline (a)
{
	var url = a.getAttribute("href");
	climate_w = window.open(url, "timeline", "scrollbars=no,resizeable=no,width=750,height=500,menubar=no,location=no,status=no");
}

function open_current (a, w, h)
{
	// a == the anchor containing link to the current conditions exhibit.  We do this so the URL can be updated in the DWT, w/o the need
	// to edit this file, and so that DW will handle all of the path rewrites.
	
	var url = a.getAttribute("href");
	current_w = window.open(url, "current", "scrollbars=no,resizeable=no,width=" + w + ",height=" + h + ",menubar=no,location=no,status=no");
}