var fDesc=new Array(); fDesc[0] = "What does the 250 bit SBAS message mean? What information does it contain? These are the questions asked by students all over the world. In a bid to answer these questions and to help the students better understand the SBAS messages, ESA in association with Iguassu software systems has developed a simple tool, aptly named the SBAS TeACHER (SBAS Tool for Education And Contributor to Harness EGNOS Research). Using this tool the different messages can be decoded. This tool also allows the users to encode the messages."; 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 = ''; } }