var fDesc=new Array(); fDesc[0] = "The Refractory Lining Thermal Modeller (RLTM) is a tool for rapid modelling of heat flows through furnace, heater and kiln linings. This app supports entry of materials in both ASTM and metric systems (or combinations), and produces results in either ASTM or metric."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }