var fDesc=new Array(); fDesc[0] = "Alumasc Drainage Calculators comprise a series of tools to calculate the sizes of Harmer SML pipework, roof outlets and gutters from the Alumasc Range of Products. The package includes 4 calculators: Foul Drainage Calculator, Internal Rainwater Calculator, Roof Outlet Calculator, and Gutter Calculator."; 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 = ''; } }