var fDesc=new Array(); fDesc[0] = "SimpleTruss is a neat and handy application that lets you draw and can automatically calculate simple trusses. It includes useful samples and it represents a great tool for students and teachers alike. It allows to see the tension and compression forces on each of its members while changin positions/dimensions."; 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 = ''; } }