var fDesc=new Array(); fDesc[0] = "Free hydrant flow test calculator that prints a professional single page report with flow graph. Pitot pressure and flow rates are calculated in accordance with NFPA 14, 2000 edition. Metric and U.S. units are supported."; 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 = ''; } }