var fDesc=new Array(); fDesc[0] = "Help students learn to add, subtract, multiply and divide whole numbers with individualized arithmetic worksheets. Guide students' progress through the structured skill levels by starting with quick tests and providing customized worksheets for practice, review and challenge. Track student achievement with scoresheets. Create unique worksheets that you can save and edit for future use."; 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 = ''; } }