var fDesc=new Array(); fDesc[0] = "Graphing Calculator 3D enables you to plot math equations and scatter points. It can generate 2D or 3D graphs using implicit or explicit equations. Supported coordinate types are: Cartesian, Polar, Cylindrical and Spherical. Parametric equations can be plotted as well as inequalities. Importing and plotting of data points is also possible."; 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 = ''; } }