function blah(){
		alert("blah");
		return 0;
	}

	function cal_bmi(lbs, ins){
	   h2 = ins * ins;
	   bmi = lbs/h2 * 703
	   f_bmi = Math.floor(bmi);
	   diff  = bmi - f_bmi;
	   diff = diff * 10;
	   diff = Math.round(diff);
	   if (diff == 10){
		  // Need to bump up the whole thing instead
		  f_bmi += 1;
		  diff = 0;
	   }
	   bmi = f_bmi + "." + diff;
	   return bmi;
	}
	function compute(){
	   var f = self.document.forms[0];

	   w = f.wt.value;
	   v = f.htf.value;
	   u = f.hti.value;

	   // Format values for the BMI calculation

	   if (!chkw(u)){
		 var ii = 0;
		 f.hti.value = 0;
	   } else {
		 var ii = parseInt(f.hti.value);
	   }

	   var fi = parseInt(f.htf.value * 12);
	   var i = fi + ii;

	  // Do validation of remaining fields to check for existence of values

	   if (!chkw(v)){
		 alert("Please enter a number for your height.");
		 f.htf.focus();
		 return;
	   }
	   if (!chkw(w)){
		 alert("Please enter a number for your weight.");
		 f.wt.focus();
		 return;
	   }

	   // Perform the calculation

	   f.bmi.value = cal_bmi(w, i);
	   f.bmi.focus();
	}

	function chkw(w){
	   if (isNaN(parseInt(w))){
		  return false;
	   } else if (w < 0){
	  return false;
	  }
	  else{
	  return true;
	  }
	}