var fDesc=new Array(); fDesc[0] = "The software contained within was developed by an agency of the U.S. Government.

The following HF propagation models for Windows PCs are available:
HFCC.zip - Antennas used by the ITU & HFCC
ICEPAC is IONCAP with ICED profile model developed by NTIA/ITS.
VOACAP is IONCAP modified by USIA/VOA for broadcasting.
REC533 is the ITU-R PI.533 model for international HF planning."; 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 = ''; } }