var fDesc=new Array(); fDesc[0] = "The EYTraker unit was designed as part of a new generation of APRS tracking devices that will add to the growing number of units that currently support live and realtime APRS tracking. The unit is different from the current tracking units available from various sources, based on the fact that the tracking unit does not use conventional HAM frequency RF technology, but rather utilises the GSM band, in particular the GPRS functionality, of the GSM system to relay APRS packets."; 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 = ''; } }