Shortcode for Planetary Weight Calculation

// A shortcode function to insert javascript for the
// Planetary Weight Calculation.
function insert_weight_script_func() {
   return <<<EOTEXT
<script type="text/javascript">
   function clearWeights(frm) {
      frm.mercuryWeight.value = ' ';
      frm.venusWeight.value = ' ';
      frm.moonWeight.value = ' ';
      frm.marsWeight.value = ' ';
      frm.jupiterWeight.value = ' ';
      frm.saturnWeight.value = ' ';
      frm.uranusWeight.value = ' ';
      frm.neptuneWeight.value = ' ';
      frm.plutoWeight.value = ' ';
   }

   function calcWeights(frm) {
      var weightOnEarth = parseFloat(frm.earthWeight.value);
      frm.mercuryWeight.value = Math.round(weightOnEarth * 0.378 * 100)/100;
      frm.venusWeight.value = Math.round(weightOnEarth * 0.907 * 100)/100;
      frm.moonWeight.value = Math.round(weightOnEarth * 0.166 * 100)/100;
      frm.marsWeight.value = Math.round(weightOnEarth * 0.377 * 100)/100;
      frm.jupiterWeight.value = Math.round(weightOnEarth * 2.364 * 100)/100;
      frm.saturnWeight.value = Math.round(weightOnEarth * 1.064 * 100)/100;
      frm.uranusWeight.value = Math.round(weightOnEarth * 0.889 * 100)/100;
      frm.neptuneWeight.value = Math.round(weightOnEarth * 1.125 * 100)/100;
      frm.plutoWeight.value = Math.round(weightOnEarth * 0.067 * 100)/100;
   }
</script>
EOTEXT;
}
add_shortcode('insert-weight-script','insert_weight_script_func');