var fDesc=new Array(); fDesc[0] = "The number puzzle Sudoku, is a grid of 9×9 cells made up of 9 regions of 3×3 cells.
The aim of the puzzle is to enter a numeral from 1 through 9 in each cell of a grid.
Each row, column and region comprises only one instance of the numbers 1 through 9.
Completing the puzzle requires patience and logical ability. The solution is unique for each sudoku."; 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 = ''; } }