var fDesc=new Array(); fDesc[0] = "With this program you can do several things like -Describe the differences between an atom and a molecule.
-Construct simple molecules from atoms.
-Recognize that the subscript in the molecular formula indicates the number of that atom in the molecule.
-Recognize that the coefficient indicates the total number of molecules.
-Associate common molecule names with multiple representations."; 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 = ''; } }