function clearValue(object) {
  if (object.value == object.defaultValue) {
    object.value = '';
  }
}

function restoreValue(object) {
  if (object.value == '') {
    object.value = object.defaultValue; 
  }
}

var search = document.getElementById('search');
search.onfocus = function() { clearValue(this) };
search.onblur = function() { restoreValue(this) };

var results = null;
results = Sizzle("a.blank", document);
for (var i in results) {
  results[i].setAttribute('target', '_blank')
}