var inputPlaceholder = function(event, el, className) {
    event = event || window.event;
    el = el || this;
    className = className || 'placeholder';

    if (el.defaultValue == '') return false;

    if (event) {
      if (event.type == 'focus' && el.value == el.defaultValue) {
        el.value = '';
      }
      else if (event.type == 'blur' && el.value == '') {
        el.value = el.defaultValue;
      }
    }

    if (el.value == el.defaultValue) {
      $(el).addClass(className);
    }
    else {
      $(el).removeClass(className);
    }
  }

$(document).ready(function() {
    $(".placeholder").focus(inputPlaceholder);
    $(".placeholder").blur(inputPlaceholder);
    $(".placeholder").change(inputPlaceholder);
    $(".placeholder").each(inputPlaceholder);
});