var fDesc=new Array(); fDesc[0] = "Free Hearing Test can test and visualize your sensitivity to the range of human-audible frequencies.

Main features:
- Full range of frequencies (20 Hz to 20,000 Hz).
- Fully configurable, automated hearing test.
- Isolate your left or right ear or listen with both ears.
- Easily add, delete or edit data points in the table.
- Quickly import and export data."; 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 = ''; } }