var fDesc=new Array(); fDesc[0] = "The student software is most commonly used as an automated homework and testing system, providing students with multimedia instruction, unlimited practice problems, error-specific feedback for mistakes, and mastery-based homework assignments. This interactive software is proven to increase student performance and retention by motivating students through mastery-based learning. All assignments can be completed with or without internet connection."; 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 = ''; } }