function expand(i){const expand_content=document.getElementById('expand-content-'+i);const expand_list=document.getElementById('expand-list-'+i);const collapse=document.getElementById('collapse'+i);const icon=document.getElementById('icon'+i);if(collapse.dataset.expanded=='true'){collapse.dataset.expanded='false';expand_content.style.maxHeight=0;expand_content.style.transition='1s';expand_content.style.transitionProperty='all';expand_list.style.transition='1s'
icon.className=icon.dataset.opened;}else{collapse.dataset.expanded='true';expand_content.style.transition='1s';expand_list.style.transition='1s';expand_content.style.transitionProperty='all';expand_content.style.maxHeight=expand_content.scrollHeight+'px';icon.className=icon.dataset.closed;}}