var fDesc=new Array(); fDesc[0] = "Free Physics Formulas is a program that includes information regarding physics formulas. The formulas are diverse ranging from simple to complicated mathematical equations. The program brings you symbols, units, prefixes, physical constants, trigonometry, geometry and thermodynamics."; 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 = ''; } }