var fDesc=new Array(); fDesc[0] = "Basic Circuits Lite is an application that contains a set of activities to help you teach basic electrical concepts. The exercises of the program include Ohm's Law I, Electric Idea, Electric Components,Powers of Ten, Color Codes and Electrical Power one."; 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 = ''; } }