t = [16,18]; root = document.getElementById("sympla-widget-1672314"); cw = root.clientWidth - 95; h = 205; for(i=0; i<2; i++) { l = Math.floor(t[i]/(cw/9))+1; h +=49; if(cw <= 154) h+=20; h += (l*15) + ((l-1)*5); } console.log(h); root.setAttribute("style", "max-width: 600px;"); ifrm = document.createElement("IFRAME"); ifrm.setAttribute("src", "https://www.sympla.com.br/tickets-grid-widget?eid=1672314&lang=pt"); ifrm.setAttribute("id", "symplaw"); ifrm.setAttribute("frameborder", "0"); ifrm.setAttribute("vspace", "0"); ifrm.setAttribute("hspace", "0"); ifrm.setAttribute("marginheight", "0"); ifrm.setAttribute("marginwidth", "5"); if(root.getAttribute("height") == "auto" || root.getAttribute("height") == null) { ifrm.style.width = "100%";ifrm.style.height = h +"px"; } else { if(root.getAttribute("height") != null) { ifrm.style.width = "100%";ifrm.style.height = root.getAttribute("height")+"px"; } } while (root.firstChild) {root.removeChild(root.firstChild);} root.appendChild(ifrm);