var fDesc=new Array(); fDesc[0] = "MetaGuide is a multi-function telescope autoguiding and collimating tool based on real-time image processing of a video stream. All it takes is a video camera (USB, Firewire, etc.), or an analog video camera (NTSC or PAL) connected to a video2usb converter. For guiding, you need either an ASCOM connection, GPUSB, TOGA, QHY, ASI, AstroGene, or LPT port interface."; 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 = ''; } }