var fDesc=new Array(); fDesc[0] = "The humidity calculator offers a comprehensive selection of humidity units. High and low humidity ranges are covered. It facilitates calculations with extremely dry gases containing only parts per billion (ppb) moisture content - which is, of most relevance to sectors such as semiconductor industry. At the other end of the scale, it is capable of calculations involving very high concentrations of water vapour - such as in paper production and certain metallurgical processes."; 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 = ''; } }