function showPlay(s) {
	
	var newWindow;
	var w, h;
	
	w = screen.width;
	h = screen.height;
	
	var centerWidth = ((w/2) - 200);
	var centreHeight = ((h/2) - 100);
	
	newWindow = window.open('play.asp?song='+s, 'subWind', 'height=200, width=400, left='+centerWidth+',top='+centreHeight+'');
	
	newWindow.focus();

}