var fDesc=new Array(); fDesc[0] = "Presidium Refractive Index Meter II is an enhancement to enable users to further eliminate the list of possible colored gemstones by entering known values such as color, hardness and S.G. value. It contains 57 gemstones properties (R.I, Color, Hardness, S.G. Value), country of origin and related information."; 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 = ''; } }