(function(){ function fillUtm(){ try { var params = new URLSearchParams(window.location.search); var map = { landing_page: window.location.href.split('?')[0], utm_source: params.get('utm_source') || '', utm_medium: params.get('utm_medium') || '', utm_campaign: params.get('utm_campaign') || '', utm_content: params.get('utm_content') || '' }; Object.keys(map).forEach(function(name){ var nodes = document.querySelectorAll('input[name="'+name+'"], input[name$="['+name+']"]'); for (var i=0;i<nodes.length;i++){ if (name === 'landing_page' || map[name]) nodes[i].value = map[name]; } }); } catch (e) } fillUtm(); if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', fillUtm); setTimeout(fillUtm, 300); setTimeout(fillUtm, 1000); })();