Event.observe(window, 'load', function() {
  blurEmailField();
  
  Event.observe('contact_email', 'focus', focusEmailField);
  Event.observe('contact_email', 'blur', blurEmailField);
  Event.observe('new_contact', 'submit', focusEmailField)
});

function blurEmailField() {
  var emailField = $( 'contact_email' );
  
  if ( $F( emailField ) == "" ) {
    emailField.setStyle({color: '#ccf'});
    emailField.value = "Enter your email address";
  };
};

function focusEmailField() {
  var emailField = $( 'contact_email' );
  
  if ( $F( emailField ) == "Enter your email address" ) {
    emailField.setStyle({color: '#003'});
    emailField.value = "";
  };
};