$(document).ready(function() {
      $.fn.clearForm = function() {
      								return this.each(function() {
          									var type = this.type, tag = this.tagName.toLowerCase();
          									if (tag == 'form')
            									return $(':input',this).clearForm();
          									
            								if (type == 'text' || type == 'password' || tag == 'textarea' || tag == "file")
            									this.value = '';
          									else if (type == 'checkbox' || type == 'radio')
            									this.checked = false;
           									else if (tag == 'select')
            									this.selectedIndex = -1;
        									});
      							};
});