var fDesc=new Array(); fDesc[0] = "Just because it is simple to use, doesn't mean that FX Equation isn't capable. You can create just about any equation a secondary school teacher or student would ever need - and many they wouldn't! To use FX Equation, you just type the equation. FX Equation looks at what you have typed and puts everything in the right place. You never have to touch the mouse."; 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 = ''; } }