var fDesc=new Array(); fDesc[0] = "Rayend is a free acoustical simulation program for engineers. The program allows you to simulate line array systems, you can set up the the parameters for the sound field and the response frequency, configure the microphone levels, draw line or calculate various sound parameters."; 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 = ''; } }