var fDesc=new Array(); fDesc[0] = "Duct Designer streamlines duct design and improves calculation precision, letting you optimize your designs. The program was developed to help optimize duct design while obtaining a minimum pressure system.

The software allows you to organize the layout structure of your duct system and provides detailed engineering information on a section-by-section basis making revisions and updates easier. The software is based on engineering data and procedures outlined in the ASHRAE Fundamentals Handbook. It includes tested data from ASHRAE Fitting database and from United McGill to provide the most accurate modeling possible."; 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 = ''; } }