// Scripted by Santanu Sikder window.addEventListener("load", setting); var N, n, inputDiv, outputDiv, nextBut, doneBut, R, rows; var teams = []; var teamsF = []; var numbers = []; for(var w = 0; w < 300; w++) { numbers[w] = w + 1; } function setting() { alert("Enter the number of teams and tap 'NEXT'"); alert("Then enter the names of the teams (or leave if you feel lazy for automatic naming of teams as random numbers) and tap 'DONE' to see the fixtures"); alert("For odd number of teams, each round will have one bye, the team which will be excluded from that round, which will be the one beside the word 'Bye'; no bye in the case of even number of teams."); N = document.getElementById("N"); inputDiv = document.getElementById("input"); nextBut = document.getElementById("next"); outputDiv = document.getElementById("output"); } function next() { n = Math.floor(N.value); if(n < 2) { alert("You MUST enter an integer ≥ 2"); } else { teamsPrompt(n); } } function teamsPrompt(num) { N.parentNode.removeChild(N); // or inputDiv.removeChild(N); nextBut.parentNode.removeChild(nextBut); // or inputDiv.removeChild(nextBut); for(var x = 0; x < num; x++) { var temp = document.createElement("input"); temp.id = x; temp.type = "text"; temp.placeholder = "Team " + (x + 1); inputDiv.appendChild(temp); inputDiv.innerHTML += "
" } inputDiv.innerHTML += "
"; doneBut = document.createElement("button"); inputDiv.appendChild(doneBut); doneBut.innerHTML = "DONE"; doneBut.addEventListener("click", teamsNamer); } function teamsNamer() { for(var y = 0; y < n; y++) { teams[y] = document.getElementById(y).value; if(teams[y] == "") { var t; for(var l = 0; l < 1; l--) { t = Math.floor(300 * Math.random()); if(numbers[t] != 0) { break; } } teams[y] = numbers[t]; numbers[t] = 0; } } for(var z = 0; z < n; z++) { var rem = document.getElementById(z); inputDiv.removeChild(rem); } inputDiv.removeChild(doneBut); inputDiv.innerHTML = "Total number of teams = " + n + "

" + "The teams are:
"; for(var b = 0; b < n; b++) { inputDiv.innerHTML += (b + 1) + ".) " + teams[b] + "
"; } outputDiv.style.display = "block"; if((n % 2) == 0) { R = n - 1; rows = n / 2; for(var h = 0; h < n; h++) { teamsF[h] = teams[h]; } } else { R = n; rows = (n + 1) / 2; for(var g = 0; g <= n; g++) { if(g == n) { teamsF[g] = "(Bye)"; } else { teamsF[g] = teams[g]; } } } for(var r = 0; r < R; r++) { var tempDiv = document.createElement("div"); tempDiv.className = "fix"; outputDiv.appendChild(tempDiv); for(var s = 0; s < rows; s++) { var dif = s - r, add = s + r, ind = 0, ind2 = 0; ind = dif; ind2 = R - add; if(ind < 0) { ind = R + ind; } if(ind2 < 0) { ind2 = R + ind2; } if(s == 0) { tempDiv.innerHTML += teamsF[ind] + " - " + teamsF[R] + "
"; } else { tempDiv.innerHTML += teamsF[ind] + " - " + teamsF[ind2] + "
"; } } } }

League Fixture using Cyclic Method (Visual)