function PopAsteroid ()
	{
		
		var win = window.open("http://www.msnbc.com/news/wld/graphics/asteroids_dw.htm?ad=0","Asteroids","width=520,height=400,scrollbars=yes,resizable=yes");
		win.focus();
	}
	

	function PopMars (period)
	{
		
		var win = window.open("http://www.msnbc.com/news/wld/graphics/mars_dw.htm?ad=0","Mars","width=540,height=400,scrollbars=yes,resizable=yes");
		win.focus();
	}
	
		function PopShadow ()
	{
		
		var win = window.open("http://www.msnbc.com/news/wld/graphics/eclipse_dw.htm?ad=0","Moon","width=536,height=400,scrollbars=yes,resizable=yes");
		win.focus();
	}
	
		function PopWireless ()
	{
		
		var win = window.open("http://www.msnbc.com/modules/silicon_summit2/wireless/wireless.htm?ad=0","Wireless","width=536,height=400,scrollbars=yes,resizable=yes");
		win.focus();
	}
	

	function PopQuake ()
	{
		
		var win = window.open("http://www.msnbc.com/news/wld/graphics/quakes_dw.htm?ad=0","Earthquakes","width=537,height=400,scrollbars=yes,resizable=yes");
		win.focus();
	}
	
	function PopDna ()
	{
		
		var win = window.open("http://www.msnbc.com/modules/genetic_fingerprints/gen_fingerprints.htm?ad=0","DNA","width=520,height=440,scrollbars=yes,resizable=yes");
		win.focus();
	}