function initOverLabels () {
  if (!document.getElementById) return;      

  var labels, id, field;

  // Set focus and blur handlers to hide and show 
  // labels with 'overlabel' class names.
  labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {

    if (labels[i].className == 'overlabel') {

      // Skip labels that do not have a named association
      // with another field.
      id = labels[i].htmlFor || labels[i].getAttribute('for');
      if (!id || !(field = document.getElementById(id))) {
        continue;
      } 

      // Change the applied class to hover the label 
      // over the form field.
      labels[i].className = 'overlabel-apply';

      // Hide any fields having an initial value.
      if (field.value !== '') {
        hideLabel(field.getAttribute('id'), true);
      }

      // Set handlers to show and hide labels.
      field.onfocus = function () {
        hideLabel(this.getAttribute('id'), true);
      };
      field.onblur = function () {
        if (this.value === '') {
          hideLabel(this.getAttribute('id'), false);
        }
      };

      // Handle clicks to label elements (for Safari).
      labels[i].onclick = function () {
        var id, field;
        id = this.getAttribute('for');
        if (id && (field = document.getElementById(id))) {
          field.focus();
        }
      };

    }
  }
};

function hideLabel (field_id, hide) {
  var field_for;
  var labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {
    field_for = labels[i].htmlFor || labels[i]. getAttribute('for');
    if (field_for == field_id) {
      labels[i].style.textIndent = (hide) ? '-10000px' : '0px';
      return true;
    }
  }
}
function addEvent( obj, type, fn ) {
  if ( obj.attachEvent ) {
    obj['e'+type+fn] = fn;
    obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
    obj.attachEvent( 'on'+type, obj[type+fn] );
   } else
    obj.addEventListener( type, fn, false );
}

function initInputs() {
	var forma = document.getElementsByTagName('input');
	for (var i = 0; i < forma.length; i++) {
		input = forma[i];
		if (input.value === '') {
			document.getElementById('contactErrors').innerHTML=msgFill;
			//alert(input.value);
			input.focus();
			return false;
		}
	}
	tarea = document.getElementById('contactFormMessage');
	if (tarea.value === '') {
		tarea.focus();
		document.getElementById('contactErrors').innerHTML=msgFill;
		return false;
	}
}

window.onload = function () {
  setTimeout(initOverLabels, 50);
  if (document.getElementById('contactFormz'))
  document.getElementById('contactFormz').onsubmit = function () {
	return initInputs();
  }
};