`;printWindow.document.write(html); printWindow.document.close(); setTimeout(() => { printWindow.print(); }, 250); }function sipExportPDF() { sipPrintComputation(); }function sipExportExcel() { const data = sipLastCalculation; if (!data.monthly) { alert('Please calculate SIP first'); return; }const monthlyReturn = (data.annualReturn / 100) / 12;let csvContent = 'SIP Returns Report\n'; csvContent += 'Generated On,' + new Date().toLocaleDateString('en-IN') + '\n\n'; csvContent += 'Investment Details\n'; csvContent += 'Monthly SIP,' + data.monthly + '\n'; csvContent += 'Investment Period (Years),' + data.years + '\n'; csvContent += 'Expected Annual Return (%),' + data.annualReturn.toFixed(1) + '\n\n'; csvContent += 'Returns Summary\n'; csvContent += 'Total Invested,' + Math.round(data.totalInvested) + '\n'; csvContent += 'Estimated Returns,' + Math.round(data.returns) + '\n'; csvContent += 'Total Value,' + Math.round(data.totalValue) + '\n'; csvContent += 'Wealth Gain (%),' + data.wealthGain.toFixed(1) + '\n\n'; csvContent += 'Year-wise Growth\n'; csvContent += 'Year,Invested,Value,Returns\n';for (let y = 1; y <= data.years; y++) { const months = y * 12; const value = data.monthly * ((Math.pow(1 + monthlyReturn, months) - 1) / monthlyReturn) * (1 + monthlyReturn); const invested = data.monthly * months; const ret = value - invested; csvContent += y + ',' + Math.round(invested) + ',' + Math.round(value) + ',' + Math.round(ret) + '\n'; }csvContent += '\nDisclaimer\nThis is for informational purposes only. Mutual fund investments are subject to market risks.\n';const blob = new Blob([csvContent], { type: 'text/csv' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = 'sip-returns-report-' + data.years + 'Y-' + data.annualReturn + 'pct.csv'; a.click(); URL.revokeObjectURL(url); }// Dropdown z-index fix (reuses same pattern as income-tax-calc) function toggleItDropdown(dropdownId) { const dropdown = document.getElementById(dropdownId); document.querySelectorAll('.custom-dropdown').forEach(d => { if (d.id !== dropdownId) { d.classList.remove('open'); const parentGroup = d.closest('.taxgst-form-group'); if (parentGroup) parentGroup.style.zIndex = ''; } }); dropdown.classList.toggle('open'); const parentGroup = dropdown.closest('.taxgst-form-group'); if (parentGroup) { parentGroup.style.zIndex = dropdown.classList.contains('open') ? '100' : ''; } }// Close dropdowns on outside click document.addEventListener('click', function(e) { if (!e.target.closest('.custom-dropdown')) { document.querySelectorAll('.custom-dropdown').forEach(d => d.classList.remove('open')); document.querySelectorAll('.taxgst-form-group').forEach(fg => fg.style.zIndex = ''); } });// Auto-calculate on page load document.addEventListener('DOMContentLoaded', function() { calculateSIP(); });