var fDesc=new Array(); fDesc[0] = "Over 350 stimulating math lessons and 1,000 problems and puzzles build problem-solving, estimating, and equation-building skills while developing your child's math confidence. Realistic challenges in 50 skill areas engage kids as they perform data interpretation, apply basic operations, and employ geometry skills through several levels of difficulty. Math Blaster is correlated to state and national standards."; 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 = ''; } }