jQuery(document).ready(function($) {
       $("#bmisubmit").click(function()
        {
          var bmi = 0;
          var height = 0;
          var weight = 0;

                            height = $("[name='bmifeet']").val() * 12 + parseInt($("[name='bmiinches']").val());
             weight = $("[name='bmipounds']").val() * 703;
          
          bmi = weight / Math.pow(height, 2);

          bmi = Math.round(bmi * 10) / 10;

          if(bmi < 12)
          {
             desiredCat = "severly underweight";
          }
          else if (bmi < 18.5)
          {
             desiredCat = "underweight";
          }
          else if (bmi < 25)
          {
             desiredCat = "normal";
          }
          else if (bmi < 30)
          {
             desiredCat = "overweight";
          }
          else if (bmi < 35)
          {
             desiredCat = "moderately obese";
          }
          else
          {
             desiredCat = "severly obese";
          }

          if(isNaN(bmi))
             $('#BMIresults').hide().text('Please enter a valid height and weight.').fadeIn();
          else
             $('#BMIresults').hide().text('Your BMI is ' + bmi + ". This puts you in the " + desiredCat + " weight range.").fadeIn();

        });
     });