var fDesc=new Array(); fDesc[0] = "ProFAA is the Federal Aviation Administration’s computer program for computing pavement elevation profile roughness indexes. Data analysis performed by the program includes the simulation of the following devices or procedure and the calculation of the associated indexes:

- Straight Edge
- Boeing Bump
- International Roughness Index (IRI)
- California Profilograph (PI)
- RMS Bandpass"; 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 = ''; } }