plugin to clear form form data

jquery.clear_form.js

// tiny plugin to clear form form data.
$.fn.clearForm = function() {
	// iterate each matching form
	return this.each(function() {

		// iterate the elements within the form
		$(':input', this).each(function() {
			var type = this.type, tag = this.tagName.toLowerCase();
			
			if (type == 'text' || type == 'password' || tag == 'textarea')
				this.value = '';
			else if (type == 'checkbox' || type == 'radio')
				this.checked = false;
			else if (tag == 'select')
				this.selectedIndex = -1;
		});
	});
};