var fDesc=new Array(); fDesc[0] = "Flow Calc is a program for calculating common Open Channel Flow hydraulic characteristics using Manning's Equation for regular and irregular channel geometries. It can calculate characteristics for steady uniform flow for circular and elliptical pipes."; 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 = ''; } }