var fDesc=new Array(); fDesc[0] = "TinkerPlots is a data visualization and modeling tool developed for use by middle school students through to university students. TinkerPlots can be used to teach grades 4 and up in subjects including math, statistics, social science, or physical or biological science content - in any course in which data are relevant."; 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 = ''; } }