var fDesc=new Array(); fDesc[0] = "Steady is a computer program that provides a generalized model to represent wastewater treatment plants. The model assumes steady-state conditions for the influents to a given plant and characterizes wastewater with the traditional environmental engineering parameters (BOD5, TSS, VSS, TKN, and NH3-N). Once a valid plant layout has been created, Steady can calculate the plant-wide mass balance and the general dimensions of the unit processes involved. Also, once the mass balance has been calculated, Steady can display the calculations performed for each unit process."; 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 = ''; } }