var fDesc=new Array(); fDesc[0] = "Scientific Calculator Precision 54 is a precise tool that allows you to perform complex mathematical calculations. The calculator handles mathematical formulas of any length and complexity. It has trigonometric, hyperbolic and inverse functions and you can store the calculation history."; 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 = ''; } }