$(document).ready(
		function(){

			$('#nav').supersubs({ 
				minWidth:    15.5,   	// minimum width of sub-menus in em units 
				maxWidth:    40.0,   	// maximum width of sub-menus in em units 
				extraWidth:  1     	// extra width can ensure lines don't sometimes turn over 
							// due to slight rounding differences and font-family 
			}).superfish();  		// call supersubs first, then superfish, so that subs are 
							// not display:none when measuring. Call before initialising 
							// containing tabs for same reason. 
		}
	);