var fDesc=new Array();
fDesc[0] = "This major rail centre in South Yorkshire provides a real challenge. Train operations are complex, with many trains terminating here, others changing direction and freight traffic to be fitted in between the frequent passenger services.<br /> <br /> In addition to Sheffield itself, the simulation includes the Dore triangular junction, Dore and Meadowhall stations and Woodburn Junction. Trains enter and leave the simulation area on 6 lines: the Midland main line to the south, the cross-Pennine line to Manchester to the west, the Rotherham and Barnsley lines to the North and the Worksop and Tinsley lines to the east.";

function tShowHide(id, show)
{
	var s = document.getElementById("desc");

	if ((s.innerHTML.length<=212 || show==1) && show!=2)
	{
		s.innerHTML = fDesc[id];
		if (document.getElementById('m1'))
			document.getElementById('m1').style.display='none';
		if (document.getElementById('m2'))
			document.getElementById('m2').style.display='none';
		if (document.getElementById('more_txt'))
			document.getElementById('more_txt').style.display='inline';
	}
	else
	{
		s.innerHTML = '';
	}
}