function IsNumeric(sText) {
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

   if (sText.length > 0) {
       for (i = 0; i < sText.length && IsNumber == true; i++) 
          { 
          Char = sText.charAt(i); 
          if (ValidChars.indexOf(Char) == -1) 
             {
             IsNumber = false;
             }
          }
   } else {
    IsNumber = false;
   }
   return IsNumber;
   
}
   
function checkNumbersForm() {
    if (
      (IsNumeric(document.getElementById('imagerTotal').value))   &&
      (IsNumeric(document.getElementById('monthFilms').value))    &&
      (IsNumeric(document.getElementById('filmPrice').value))     &&
      (IsNumeric(document.getElementById('allService').value))
    ) {
         // none are true
        document.getElementById('numbersForm').submit(); 
    } else {
        // one or more are true
        showNumError();
        return(1);
    }    
}
function showNumError() {
    document.getElementById('numberError').style.visibility = "visible";
}

function checkContactInfo() {
    if (
      (document.getElementById('contactName').value == "")   ||
      (document.getElementById('facilityName').value == "")  ||
      (document.getElementById('state').value == "")         ||
      (document.getElementById('emailAddress').value == "")
    ) {
        // one or more are true
        showError();
        return(1);
    } else {
        // none are true
        document.getElementById('contactForm').submit();
        
    }
    
}

function showError() {
    document.getElementById('contactError').style.visibility = "visible";
}