var fDesc=new Array(); fDesc[0] = "Half-life calculator is a tool for calculating and graphing pk parameters based on serum level data. Features of Half-life calculator: enter up to ten serum level and date/time pairs, least squares linear regression, solve for dose or Vol disl, save/load serum level profiles. Print report to printer or PDF file and online help."; 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 = ''; } }