var fDesc=new Array(); fDesc[0] = "You are lost in Chefren's Egyptian Pyramid, and the only way out is through the exit at the top. Wander through the tunnels and rooms of the pyramid, where you will encounter mental calculations, approximation challenges, problem solving, games, culture, and lots more. Make discoveries about numbers as you advance from one graphically stunning room to the next. The unparalleled graphics and variety of challenges will capture kids' attention for hours. Students climb to the next level of mathematical understanding in this totally absorbing adventure."; 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 = ''; } }