var fDesc=new Array(); fDesc[0] = "Membrane Master is the world's foremost scaling prediction program and the result of many years of development. Just enter project details, operational data and a detailed water analysis and Membrane Master will automatically calculate the Langelier Saturation Index and the most effective antiscalant as well as the recommended dosage."; 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 = ''; } }