function change_game(x) {
    if(x==10) {
        document.getElementById('game_chess').style.display = "block";
        document.getElementById('game_checkers').style.display = "none";
		document.getElementById('game_gammon').style.display = "none";
		document.getElementById('game_rhumb').style.display = "none";
		document.getElementById('game_sudoku').style.display = "none";
		document.getElementById('game_jigsaw').style.display = "none";
    }
	if(x==11) {
        document.getElementById('game_chess').style.display = "none";
        document.getElementById('game_checkers').style.display = "block";
		document.getElementById('game_gammon').style.display = "none";
		document.getElementById('game_rhumb').style.display = "none";
		document.getElementById('game_sudoku').style.display = "none";
		document.getElementById('game_jigsaw').style.display = "none";
    }
	if(x==12) {
        document.getElementById('game_chess').style.display = "none";
        document.getElementById('game_checkers').style.display = "none";
		document.getElementById('game_gammon').style.display = "block";
		document.getElementById('game_rhumb').style.display = "none";
		document.getElementById('game_sudoku').style.display = "none";
		document.getElementById('game_jigsaw').style.display = "none";
    }
	if(x==13) {
        document.getElementById('game_chess').style.display = "none";
        document.getElementById('game_checkers').style.display = "none";
		document.getElementById('game_gammon').style.display = "none";
		document.getElementById('game_rhumb').style.display = "block";
		document.getElementById('game_sudoku').style.display = "none";
		document.getElementById('game_jigsaw').style.display = "none";
    }
	if(x==14) {
        document.getElementById('game_chess').style.display = "none";
        document.getElementById('game_checkers').style.display = "none";
		document.getElementById('game_gammon').style.display = "none";
		document.getElementById('game_rhumb').style.display = "none";
		document.getElementById('game_sudoku').style.display = "block";
		document.getElementById('game_jigsaw').style.display = "none";
    }
	if(x==15) {
        document.getElementById('game_chess').style.display = "none";
        document.getElementById('game_checkers').style.display = "none";
		document.getElementById('game_gammon').style.display = "none";
		document.getElementById('game_rhumb').style.display = "none";
		document.getElementById('game_sudoku').style.display = "none";
		document.getElementById('game_jigsaw').style.display = "block";
    }
}