var fDesc=new Array(); fDesc[0] = "Archimedes Geo3D allows the user to execute geometric constructions in three dimensions. It generalizes the well-known ruler and compass constructions to spatial geometry.
The most important elements are: Points, Lines, Circles, Planes, Spheres, Vectors, Loci.
Archimedes allows you to construct those geometric objects and their intersections in many ways."; 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 = ''; } }