var fDesc=new Array(); fDesc[0] = "VnetPC PRO is a ventilation network simulator originally developed by Dr. Malcolm J. McPherson. It is designed to assist personnel in the planning of underground ventilation layouts. As the most user-friendly, economic choice in the industry for ventilation planners and mining companies, VnetPC continues to be the most widely used ventilation simulation software on the market."; 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 = ''; } }