jQuery(document).ready(function () { jQuery("#panel-s1 dl.level1 > dt:nth-of-type(4)").addClass("opened"); jQuery("#panel-s1 dl.level1 > dd:nth-of-type(4)").addClass("opened"); jQuery("#panel-s1 dl.level1 > dd:nth-of-type(4) > dl.level2 > dt:nth-of-type(1)").addClass("opened"); jQuery("#panel-s1 dl.level1 > dd:nth-of-type(4) > dl.level2 > dd:nth-of-type(1)").addClass("opened"); }); Sicurezza – Sistemi anticaduta Ventilation, waterproofing, airtightness Elements for roof ventilation Under-ridge elements Accessories for ventilation Connections for chimneys and walls Breathable membranes and vapour control layers [...]