var fDesc=new Array(); fDesc[0] = "The frog dissection is one of the most common laboratory exercises used in biology. Although frogs are amphibians, their anatomical framework can easily be compared to human anatomy. In this lab the student will be interactively engaged in learning the anatomy & physiology of the frog and about its environment."; 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 = ''; } }