var fDesc=new Array(); fDesc[0] = "Replace all your charts and tests with one easy-to-use visual acuity testing system! With tests ranging from customizable, randomized acuity charts to complex
visual diagnostic tests, 20/20 Vision is suitable for optometry, ophthalmology, and clinical research alike.

Get updates invisibly, right from the cloud over your network connection. New features are streamed directly to your computer, without any confusing disks or installation guides."; 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 = ''; } }