function nice_r_toggle(pfx, id){ var el = document.getElementById(pfx+'_v'+id); if(el){ if(el.style.display==='block'){ el.style.display = 'none'; document.getElementById(pfx+'_a'+id).innerHTML = '►'; }else{ el.style.display = 'block'; document.getElementById(pfx+'_a'+id).innerHTML = '▼'; } } }