var fDesc=new Array();
fDesc[0] = "Su Doku is a number puzzle based on a rectangular 9x9 grid. The grid is also divided into nine 3x3 boxes. You are given a selection of values and, to complete the puzzle, you must fill the grid so that every column, every row and every 3x3 box contains the digits 1 to 9.";

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 = '';
	}
}