var fDesc=new Array(); fDesc[0] = "Formulator MathML IE Performer is a browser plugin that enhances Internet Explorer to display mathematical notations within a web page. You can choose the Zoom command to change the viewing scale and get a closer look at the equation. You can also bring the equation back down to normal size by a single mouse click."; 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 = ''; } }