function boardini() {
	var board1 = document.getElementById("board1");
	var board2 = document.getElementById("board2");
	var board3 = document.getElementById("board3");
	var board4 = document.getElementById("board4");
	var board5 = document.getElementById("board5");
	var board6 = document.getElementById("board6");
	var s = Math.round(Math.random()*10) % 6;

	if(s == 0) {
    board1.style.display = 'block';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';

	}else if(s == 1) {
    board1.style.display = 'none';
    board2.style.display = 'block';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';

	}else if(s == 2) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'block';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';

	}else if(s == 3) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'block';
    board5.style.display = 'none';
    board6.style.display = 'none';

	}else if(s == 4) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'block';
    board6.style.display = 'none';

	}else if(s == 5) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'block';

	}

}

function boardset(s) {

  var board1 = document.getElementById("board1");
  var board2 = document.getElementById("board2");
  var board3 = document.getElementById("board3");
  var board4 = document.getElementById("board4");
  var board5 = document.getElementById("board5");
  var board6 = document.getElementById("board6");

  if(s == 1) {
    board1.style.display = 'block';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';
  }else if(s == 2) {
    board1.style.display = 'none';
    board2.style.display = 'block';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';
  }else if(s == 3) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'block';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'none';
  }else if(s == 4) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'block';
    board5.style.display = 'none';
    board6.style.display = 'none';
  }else if(s == 5) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'block';
    board6.style.display = 'none';
  }else if(s == 6) {
    board1.style.display = 'none';
    board2.style.display = 'none';
    board3.style.display = 'none';
    board4.style.display = 'none';
    board5.style.display = 'none';
    board6.style.display = 'block';
  }
}