/********************************************************
   Form Validation
 ********************************************************/

function checkClearValue(field, label){   
  if(field.value == label)
    field.value = "";
}

function checkFillValue(field, label){
  if(field.value.length == 0)
    field.value = label;
}

function isEmpty(str){
  return (str == null) || (trim(str).length == 0);
}

function isEmail(str){
  var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
  return re.test(str);
}
function validateContactForm_eng(form){

  var name = form.name.value;
  var subject = form.subject.value;
  var email = form.email.value;
  var message = form.message.value;

  var errors = "";
  var count = 0;

  if(name == "")
    errors += "\n    " + (++count) + ". Please enter your name";

   if(email == "")
    errors += "\n    " + (++count) + ". Please enter your e-mail";
  else if(!isEmail(email))
    errors += "\n    " + (++count) + ". Wrong E-mail format";

  if(message == "")
    errors += "\n    " + (++count) + ". Please enter your message";


  if(errors != ""){
    alert("Please carefully enter all required fields!\n" + errors);
    return false;
  }

  return true;
}

function getCopyrightYear() {
  var date = new Date();
  if(date.getFullYear() == "2007")
  document.write(date.getFullYear());
  else
  document.write('2007 - ' + date.getFullYear());

}