var fDesc=new Array(); fDesc[0] = "Math Illustrations is an intuitive too to create geometric diagrams for documents and presentations. You can set the lengths of lines, value of angles, and size of radii in your figures. If side A of a triangle is length 4 and side B is length 6, you can be sure that side B is 1.5 times longer than side A."; 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 = ''; } }