var fDesc=new Array(); fDesc[0] = "Acuity Brands Lighting’s Economic Viewer software allows the user to perform simple financial comparisons between lighting alternatives. Whether investigating the economics of a renovation project or deciding between several options in a new construction project, the Economic Viewer considers both initial and annual costs to determine payback periods and internal rate of return."; 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 = ''; } }