var fDesc=new Array(); fDesc[0] = "Explore GCSE Additional Science with comprehensive and varied teaching material, including this innovative, step-by-step simulation about positive and negative ions. With over 100 presentations in total, Boardworks GCSE Additional Science gives you everything you need to teach the new 2011 specifications.

GCSE Additional Science is designed expressly to cover the Controlled Assessment and the 'How Science Works' elements of the new GCSE specification."; 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 = ''; } }