var SymRealWinOpen;
var SymWinOpen;
var pres_player

function openPlayerWindow(sURL)
{
	

	// handle Symantec's window.open blocker
	if ( !(SymRealWinOpen == null) && !(SymWinOpen == null) )
	{
		if (window.open == SymWinOpen)
		{
			// Norton Internet Security has overridden the window.open method,
			// but we can replace it with the original.
			window.open = SymRealWinOpen;
		}
	}

	// because the 3rd-party presentation player's code has an issue, close this window before opening anew.
	if (pres_player)
	{
		if (!(pres_player.closed))
		{
			pres_player.close();
		}
	}

	// opens a player window for sURL
	pres_player = window.open(sURL, 'pres_player_window', 'height=420,width=450,alwaysraised,left=64,screenX=64,top=64,screenY=64');
	if (!pres_player || pres_player.closed)
	{
		alert("Couldn't open presentation player window. If you are using popup blocking software, please disable it to launch the presentation.");
	} else {
		pres_player.focus();
	}
}