Paul Singh Bhatia, European Space Agency (ESA) | Advanced Engineering 2022

Paul Singh Bhatia, Business Applications Ambassador for the UK, European Space Agency (ESA)

document.addEventListener("DOMContentLoaded", function() { const tab1 = document.getElementById('top-tab-1'); const tab2 = document.getElementById('top-tab-2'); // 1. Read the url parameter marker (?view=exhibitor) directly from the address bar const urlParams = new URLSearchParams(window.location.search); let currentView = urlParams.get('view'); // 2. If no URL parameter exists yet, check the page name to determine the default section const currentPath = window.location.pathname; // Auto-detect explicit Exhibitor pages (Add any explicit exhibitor slugs here) if (!currentView) { if (currentPath.includes('/advanced-engineering-exhibitors') || currentPath.includes('/exhibit') || currentPath.includes('/sponsorship')) { currentView = 'exhibitor'; } else { currentView = 'visitor'; // Default fallback } } // 3. Highlight the correct top tab based on the final decision if (currentView === 'exhibitor' && tab2) { if (tab1) tab1.classList.remove('active-tab'); tab2.classList.add('active-tab'); } else if (tab1) { if (tab2) tab2.classList.remove('active-tab'); tab1.classList.add('active-tab'); } // 4. Force all navigation links to remember this view state across page reloads // This dynamically appends ?view=exhibitor or ?view=visitor to links before they are clicked if (currentView) { document.querySelectorAll('a').forEach(link => { const href = link.getAttribute('href'); // Avoid altering external domains, anchor tags, or javascript links if (href && href.startsWith('http') && href.includes(window.location.hostname) && !href.includes('#')) { try { const linkUrl = new URL(href); linkUrl.searchParams.set('view', currentView); link.setAttribute('href', linkUrl.toString()); } catch (e) { // Fail-safe for malformed URL strings } } else if (href && href.startsWith('/') && !href.includes('#')) { // Handle relative root links (e.g., /our-vision/) const separator = href.includes('?') ? '&' : '?'; link.setAttribute('href', href + separator + 'view=' + currentView); } }); } });