var fDesc=new Array(); fDesc[0] = "From enzymes to homeostasis, Boardworks A2 Biology contains a wealth of fresh, exciting and fully customisable ideas, mapped to the AQA, Edexcel and OCR specifications. Fascinating interactive experiments bring processes to life and stimulate students' interest."; 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 = ''; } }