OpenTally/html/index.js

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JavaScript
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/* OpenTally: Open-source election vote counting
* Copyright © 2021 Lee Yingtong Li (RunasSudo)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
function clickAdvancedOptions() {
if (document.getElementById('divAdvancedOptions').style.display === 'none') {
document.getElementById('divAdvancedOptions').style.display = 'grid';
document.getElementById('btnAdvancedOptions').innerHTML = 'Hide advanced options';
} else {
document.getElementById('divAdvancedOptions').style.display = 'none';
document.getElementById('btnAdvancedOptions').innerHTML = 'Show advanced options';
}
}
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var tblResult = document.getElementById('result');
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var divLogs2 = document.getElementById('resultLogs2');
var olStageComments;
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var worker = new Worker('worker.js');
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worker.onmessage = function(evt) {
if (evt.data.type === 'init') {
document.getElementById('spanRevNum').innerText = evt.data.version;
document.getElementById('divLoading').style.display = 'none';
document.getElementById('divUI').style.display = 'block';
} else if (evt.data.type === 'initResultsTable') {
tblResult.innerHTML = evt.data.content;
divLogs2.innerHTML = '<p>Stage comments:</p>';
olStageComments = document.createElement('ol');
divLogs2.append(olStageComments);
} else if (evt.data.type === 'describeCount') {
document.getElementById('resultLogs1').innerHTML = evt.data.content;
} else if (evt.data.type === 'updateResultsTable') {
for (let i = 0; i < evt.data.result.length; i++) {
if (evt.data.result[i]) {
tblResult.rows[i].insertAdjacentHTML('beforeend', evt.data.result[i]);
// Update candidate status
if (i >= 3 && i % 2 == 1) {
if (tblResult.rows[i].lastElementChild.classList.contains('elected')) {
tblResult.rows[i].cells[0].classList.add('elected');
} else {
tblResult.rows[i].cells[0].classList.remove('elected');
}
}
}
}
} else if (evt.data.type === 'updateStageComments') {
let elLi = document.createElement('li');
elLi.innerHTML = evt.data.comment;
olStageComments.append(elLi);
} else if (evt.data.type === 'finalResultSummary') {
divLogs2.insertAdjacentHTML('beforeend', evt.data.summary);
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document.getElementById('printPane').style.display = 'block';
} else if (evt.data.type === 'requireInput') {
let response = window.prompt(evt.data.message);
while (response === null) {
response = window.prompt(evt.data.message);
}
worker.postMessage({'type': 'userInput', 'response': response});
}
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}
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worker.onerror = function(evt) {
alert('An unknown error occurred while counting the votes. More details may be available in the browser\'s developer console.');
}
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async function clickCount() {
if (document.getElementById('bltFile').files.length === 0) {
return;
}
// Read BLT file
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let bltPath = document.getElementById('bltFile').value;
bltPath = bltPath.substring(Math.max(bltPath.lastIndexOf('\\'), bltPath.lastIndexOf('/')) + 1);
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let bltFile = document.getElementById('bltFile').files[0];
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let bltData = await bltFile.text();
// Read CON file (if applicable)
let conPath = null;
let conData = null;
if (document.getElementById('conFile').files.length > 0) {
conPath = document.getElementById('conFile').value;
conPath = conPath.substring(Math.max(conPath.lastIndexOf('\\'), conPath.lastIndexOf('/')) + 1);
let conFile = document.getElementById('conFile').files[0];
conData = await conFile.text();
}
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// Init STV options
let optsStr = [
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document.getElementById('chkRoundTVs').checked ? parseInt(document.getElementById('txtRoundTVs').value) : null,
document.getElementById('chkRoundWeights').checked ? parseInt(document.getElementById('txtRoundWeights').value) : null,
document.getElementById('chkRoundVotes').checked ? parseInt(document.getElementById('txtRoundVotes').value) : null,
document.getElementById('chkRoundQuota').checked ? parseInt(document.getElementById('txtRoundQuota').value) : null,
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document.getElementById('selSumTransfers').value,
document.getElementById('txtMeekSurplusTolerance').value,
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document.getElementById('chkNormaliseBallots').checked,
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document.getElementById('selQuota').value,
document.getElementById('selQuotaCriterion').value,
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document.getElementById('selQuotaMode').value,
document.getElementById('selTies').value.split(','),
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document.getElementById('txtSeed').value,
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document.getElementById('selTransfers').value,
document.getElementById('selSurplus').value,
document.getElementById('selPapers').value == 'transferable',
document.getElementById('selExclusion').value,
document.getElementById('chkMeekNZExclusion').checked,
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document.getElementById('chkBulkElection').checked,
document.getElementById('chkBulkExclusion').checked,
document.getElementById('chkDeferSurpluses').checked,
document.getElementById('chkMeekImmediateElect').checked,
conPath,
"guard_doom",
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parseInt(document.getElementById('txtPPDP').value),
];
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// Dispatch to worker
worker.postMessage({
'type': 'countElection',
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'bltData': bltData,
'conData': conData,
'optsStr': optsStr,
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'bltPath': bltPath,
'conPath': conPath,
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'numbers': document.getElementById('selNumbers').value,
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'decimals': document.getElementById('txtDP').value,
'normaliseBallots': document.getElementById('chkNormaliseBallots').checked,
});
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}
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// Provide a default seed
if (document.getElementById('txtSeed').value === '') {
function pad(x) { if (x < 10) { return '0' + x; } return '' + x; }
let d = new Date();
document.getElementById('txtSeed').value = d.getFullYear() + pad(d.getMonth() + 1) + pad(d.getDate());
}
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// Print logic
async function printResult() {
let printableWidth; // Printable width in CSS pixels
let paperSize = document.getElementById('selPaperSize').value;
if (paperSize === 'A4') {
printableWidth = (29.7 - 2) * 96 / 2.54;
} else if (paperSize === 'A3') {
printableWidth = (42.0 - 2) * 96 / 2.54;
} else if (paperSize === 'letter') {
printableWidth = (27.9 - 2) * 96 / 2.54;
}
printableWidth = Math.round(printableWidth);
let wprint = window.open('');
wprint.document.title = 'OpenTally Report';
// Add stylesheets
let numToLoad = 0;
let numLoaded = -1;
function onLoadStylesheet() {
numLoaded++;
if (numLoaded == numToLoad) {
wprint.print();
}
}
for (let elCSSBase of document.querySelectorAll('head link')) {
numToLoad++;
let elCSS = wprint.document.createElement('link');
elCSS.rel = elCSSBase.rel;
elCSS.type = elCSSBase.type;
if (elCSSBase.href.endsWith('?v=GITVERSION')) {
elCSS.href = elCSSBase.href.replace('?v=GITVERSION', '?v=' + Math.random());
} else {
elCSS.href = elCSSBase.href;
}
elCSS.onload = onLoadStylesheet;
wprint.document.head.appendChild(elCSS);
}
// Configure printing
let elStyle = wprint.document.createElement('style');
elStyle.innerHTML = '@page { size: ' + paperSize + ' landscape; margin: 1cm; } @media print { body { padding: 0; } }';
wprint.document.head.appendChild(elStyle);
let elContainer = wprint.document.createElement('div');
elContainer.id = 'printContainer';
elContainer.style.width = printableWidth + 'px';
wprint.document.body.appendChild(elContainer);
// Copy result logs 1
let divResultLogs1 = document.getElementById('resultLogs1');
let divResultLogs2 = wprint.document.createElement('div');
divResultLogs2.innerHTML = divResultLogs1.innerHTML;
elContainer.appendChild(divResultLogs2);
// Parse table, accounting for rowspan
let elTrs1 = document.querySelector('#result').rows;
let rows = [];
for (let elTr1 of elTrs1) {
rows.push([]);
}
for (let r = 0; r < elTrs1.length; r++) {
for (let c = 0; c < elTrs1[r].cells.length; c++) {
let elTd1 = elTrs1[r].cells[c];
rows[r].push(elTd1);
let rowspan = elTd1.getAttribute('rowspan');
// NB: Only works for rowspan in first column
if (rowspan !== null && c == 0) {
rowspan = parseInt(rowspan);
// Add ghost cells
for (let i = 1; i < rowspan; i++) {
rows[r + i].push(null);
}
}
}
}
function copyColumn(c, elTrs2) {
let tdsAdded = [];
for (let r = 0; r < rows.length; r++) {
if (c < rows[r].length) {
let elTd1 = rows[r][c];
if (elTd1 !== null) {
let elTd2 = wprint.document.createElement('td');
elTd2.innerHTML = elTd1.innerHTML;
elTd2.className = elTd1.className;
elTd2.setAttribute('rowspan', elTd1.getAttribute('rowspan'));
elTd2.setAttribute('style', elTd1.getAttribute('style'));
elTrs2[r].appendChild(elTd2);
tdsAdded.push(elTd2);
}
}
}
return tdsAdded;
}
async function copyTableColumns(startCol) {
// Add table
let elTable2 = wprint.document.createElement('table');
elTable2.className = 'result';
if (startCol > 1) {
elTable2.style.pageBreakBefore = 'always';
}
elContainer.appendChild(elTable2);
// Add rows
let elTrs2 = [];
for (let elTr1 of elTrs1) {
let elTr2 = wprint.document.createElement('tr');
elTr2.className = elTr1.className;
elTrs2.push(elTr2);
elTable2.appendChild(elTr2);
}
// Copy first column
copyColumn(0, elTrs2);
// How many columns to copy?
let totalWidth = rows[0][0].clientWidth;
let endCol;
for (endCol = startCol; endCol < rows[0].length; endCol++) {
if (totalWidth + rows[0][endCol].clientWidth > printableWidth) {
break;
}
totalWidth += rows[0][endCol].clientWidth;
}
// Copy columns
for (let c = startCol; c < endCol; c++) {
copyColumn(c, elTrs2);
}
// Copy stage comments
elContainer.insertAdjacentHTML('beforeend', '<p>Stage comments:</p>');
let olStageComments2 = wprint.document.createElement('ol');
olStageComments2.start = startCol;
elContainer.append(olStageComments2);
for (let c = startCol; c < endCol && c < rows[0].length - 1; c++) {
olStageComments2.insertAdjacentHTML('beforeend', olStageComments.children[c-1].outerHTML);
}
if (endCol < rows[0].length) {
// Start new table if columns remain
copyTableColumns(endCol);
} else {
// Copy winning candidates
elContainer.insertAdjacentHTML('beforeend', '<p>Count complete. The winning candidates are, in order of election:</p>');
elContainer.insertAdjacentHTML('beforeend', divLogs2.lastElementChild.outerHTML);
}
}
// Adjust results table to width
document.getElementById('resultsDiv').style.width = printableWidth + 'px';
await new Promise(window.requestAnimationFrame); // Allow DOM to update
// Copy table
await copyTableColumns(1);
// Restore original view
document.getElementById('resultsDiv').style.width = 'auto';
// Trigger print when ready
onLoadStylesheet();
}
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// Presets
function changePreset() {
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if (document.getElementById('selPreset').value === 'wigm') {
document.getElementById('selQuotaCriterion').value = 'gt';
document.getElementById('selQuota').value = 'droop_exact';
document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
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document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = false;
document.getElementById('selNumbers').value = 'rational';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
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document.getElementById('chkRoundQuota').checked = false;
document.getElementById('chkRoundVotes').checked = false;
document.getElementById('chkRoundTVs').checked = false;
document.getElementById('chkRoundWeights').checked = false;
document.getElementById('selSumTransfers').value = 'single_step';
document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'wig';
document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'single_stage';
document.getElementById('selTies').value = 'backwards,random';
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} else if (document.getElementById('selPreset').value === 'scottish') {
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document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
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document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = false;
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document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
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document.getElementById('txtPPDP').value = '5';
document.getElementById('chkNormaliseBallots').checked = true;
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document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '0';
document.getElementById('chkRoundVotes').checked = false;
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document.getElementById('chkRoundTVs').checked = true;
document.getElementById('txtRoundTVs').value = '5';
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document.getElementById('chkRoundWeights').checked = false;
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document.getElementById('selSumTransfers').value = 'per_ballot';
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document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'wig';
document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'single_stage';
document.getElementById('selTies').value = 'backwards,random';
} else if (document.getElementById('selPreset').value === 'meek87') {
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document.getElementById('selQuotaCriterion').value = 'gt';
document.getElementById('selQuota').value = 'droop_exact';
document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
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document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = false;
document.getElementById('chkMeekImmediateElect').checked = false;
document.getElementById('chkMeekNZExclusion').checked = false;
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document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
document.getElementById('chkRoundQuota').checked = false;
document.getElementById('chkRoundVotes').checked = false;
document.getElementById('chkRoundTVs').checked = false;
document.getElementById('chkRoundWeights').checked = false;
//document.getElementById('selSumTransfers').value = 'single_step';
document.getElementById('txtMeekSurplusTolerance').value = '0.001%';
//document.getElementById('selSurplus').value = 'by_size';
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document.getElementById('selTransfers').value = 'meek';
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document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'single_stage';
document.getElementById('selTies').value = 'backwards,random';
} else if (document.getElementById('selPreset').value === 'meek06') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = true;
document.getElementById('chkMeekImmediateElect').checked = true;
document.getElementById('chkMeekNZExclusion').checked = false;
document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '12';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '9';
document.getElementById('chkRoundVotes').checked = true;
document.getElementById('txtRoundVotes').value = '9';
document.getElementById('chkRoundTVs').checked = true;
document.getElementById('txtRoundTVs').value = '9';
document.getElementById('chkRoundWeights').checked = true;
document.getElementById('txtRoundWeights').value = '9';
//document.getElementById('selSumTransfers').value = 'single_step';
document.getElementById('txtMeekSurplusTolerance').value = '0.0001';
//document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'meek';
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document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'single_stage';
document.getElementById('selTies').value = 'backwards,random';
} else if (document.getElementById('selPreset').value === 'meeknz') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = true;
document.getElementById('chkMeekImmediateElect').checked = true;
document.getElementById('chkMeekNZExclusion').checked = true;
document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '12';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '9';
document.getElementById('chkRoundVotes').checked = true;
document.getElementById('txtRoundVotes').value = '9';
document.getElementById('chkRoundTVs').checked = true;
document.getElementById('txtRoundTVs').value = '9';
document.getElementById('chkRoundWeights').checked = true;
document.getElementById('txtRoundWeights').value = '9';
//document.getElementById('selSumTransfers').value = 'single_step';
document.getElementById('txtMeekSurplusTolerance').value = '0.0001';
//document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'meek';
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document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'single_stage';
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document.getElementById('selTies').value = 'backwards,random';
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} else if (document.getElementById('selPreset').value === 'senate') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
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document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = true;
document.getElementById('chkDeferSurpluses').checked = false;
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document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
document.getElementById('txtPPDP').value = '0';
document.getElementById('chkNormaliseBallots').checked = false;
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document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '0';
document.getElementById('chkRoundVotes').checked = true;
document.getElementById('txtRoundVotes').value = '0';
document.getElementById('chkRoundTVs').checked = false;
document.getElementById('chkRoundWeights').checked = false;
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document.getElementById('selSumTransfers').value = 'single_step';
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document.getElementById('selSurplus').value = 'by_order';
document.getElementById('selTransfers').value = 'uig';
document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'by_value';
document.getElementById('selTies').value = 'backwards,random';
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} else if (document.getElementById('selPreset').value === 'wright') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
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document.getElementById('chkBulkExclusion').checked = true;
document.getElementById('chkDeferSurpluses').checked = false;
document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '0';
document.getElementById('chkRoundVotes').checked = false;
document.getElementById('chkRoundTVs').checked = false;
document.getElementById('chkRoundWeights').checked = false;
document.getElementById('selSumTransfers').value = 'single_step';
document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'wig';
document.getElementById('selPapers').value = 'both';
document.getElementById('selExclusion').value = 'wright';
document.getElementById('selTies').value = 'random';
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} else if (document.getElementById('selPreset').value === 'prsa77') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop';
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document.getElementById('selQuotaMode').value = 'static';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = false;
document.getElementById('chkDeferSurpluses').checked = true;
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document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
document.getElementById('txtPPDP').value = '3';
document.getElementById('chkNormaliseBallots').checked = false;
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document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '3';
document.getElementById('chkRoundVotes').checked = true;
document.getElementById('txtRoundVotes').value = '3';
document.getElementById('chkRoundTVs').checked = true;
document.getElementById('txtRoundTVs').value = '3';
document.getElementById('chkRoundWeights').checked = true;
document.getElementById('txtRoundWeights').value = '3';
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document.getElementById('selSumTransfers').value = 'single_step';
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document.getElementById('selSurplus').value = 'by_order';
document.getElementById('selTransfers').value = 'eg';
document.getElementById('selPapers').value = 'transferable';
document.getElementById('selExclusion').value = 'parcels_by_order';
document.getElementById('selTies').value = 'backwards,random';
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} else if (document.getElementById('selPreset').value === 'ers97') {
document.getElementById('selQuotaCriterion').value = 'geq';
document.getElementById('selQuota').value = 'droop_exact';
document.getElementById('selQuotaMode').value = 'ers97';
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document.getElementById('chkBulkElection').checked = true;
document.getElementById('chkBulkExclusion').checked = true;
document.getElementById('chkDeferSurpluses').checked = true;
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document.getElementById('selNumbers').value = 'fixed';
document.getElementById('txtDP').value = '5';
document.getElementById('txtPPDP').value = '2';
document.getElementById('chkNormaliseBallots').checked = false;
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document.getElementById('chkRoundQuota').checked = true;
document.getElementById('txtRoundQuota').value = '2';
document.getElementById('chkRoundVotes').checked = true;
document.getElementById('txtRoundVotes').value = '2';
document.getElementById('chkRoundTVs').checked = true;
document.getElementById('txtRoundTVs').value = '2';
document.getElementById('chkRoundWeights').checked = true;
document.getElementById('txtRoundWeights').value = '2';
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document.getElementById('selSumTransfers').value = 'single_step';
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document.getElementById('selSurplus').value = 'by_size';
document.getElementById('selTransfers').value = 'eg';
document.getElementById('selPapers').value = 'transferable';
document.getElementById('selExclusion').value = 'by_value';
document.getElementById('selTies').value = 'forwards,random';
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}
}