var fDesc=new Array(); fDesc[0] = "Dewey Easy is a browser extension that provides training and practice on the Dewey Decimal Classification (DDC) System. The DDC takes its name from Melvil Dewey who first published this scheme of library book classification in 1876. In DDC, each item is assigned a specific call number. This call number is like an address. The address is the particular place the item can be found on the shelves in relation to similar materials."; 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 = ''; } }