var fDesc=new Array(); fDesc[0] = "Virtual NXT with RVWs is a simulation program designed to help educators teach mathematics, computational thinking skills and programming. The program is compatible with the NXT-G, EV3 and LabVIEW for LEGO Mindstorms. The virtual robots have motors, shaft encoders, ultrasonic sensors, light sensors, touch sensors and compass sensors."; 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 = ''; } }