// JavaScript Document

function myCon() {
  var FromVal, ToVal, FromName, ToName, v1, Factor;

  v1 = document.ConvertForm.height.value;
  v2 = document.ConvertForm.width.value;
  v3 = document.ConvertForm.length.value;
 
 if (isNaN(v1)) document.ConvertForm.what.value="Not a number";
  eval('v1 = parseFloat(' + v1 + ');');
  v1 = Math.abs(v1);
  document.ConvertForm.height.value = v1;
   
 if (isNaN(v2)) document.ConvertForm.what.value="Not a number";
  eval('v2 = parseFloat(' + v2 + ');');
  v2 = Math.abs(v2);
  document.ConvertForm.width.value = v2;
 
 if (isNaN(v3)) document.ConvertForm.what.value="Not a number";
  eval('v3 = parseFloat(' + v3 + ');');
  v3 = Math.abs(v3);
  document.ConvertForm.length.value = v3;
  
  FromVal = document.ConvertForm.from[document.ConvertForm.from.selectedIndex].value;
  ToVal = document.ConvertForm.to[document.ConvertForm.to.selectedIndex].value;
  FromName = document.ConvertForm.from.options[document.ConvertForm.from.selectedIndex].text;
  ToName = document.ConvertForm.to.options[document.ConvertForm.to.selectedIndex].text;

	if ((FromVal == "") || (ToVal == "")){
		document.ConvertForm.answer.value = "";
		return;
	}
  Factor = eval("(" + FromVal + ")*(" + FromVal + ")*(" + FromVal + ")/(" + ToVal + ")");

  document.ConvertForm.answer.value =document.ConvertForm.height.value*document.ConvertForm.width.value*document.ConvertForm.length.value*Factor;

}



function reset_h() {
  document.ConvertForm.height.value = "";
  document.ConvertForm.answer.value = "";
}

function reset_w() {
  document.ConvertForm.width.value = "";
    document.ConvertForm.answer.value = "";
}

function reset_l() {
 document.ConvertForm.length.value = "";
 document.ConvertForm.answer.value = "";
}

function reset_f() {
 document.ConvertForm.length.value = "";
 document.ConvertForm.answer.value = "";
 document.ConvertForm.width.value = "";
 document.ConvertForm.height.value = "";
}