function $() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1)
      return element;

    elements.push(element);
  }

  return elements;
}

function hide(obj,orig) {
	if (obj.value.indexOf(orig)!=-1) {
		obj.value = '';
	}
	obj.focus();
	return true;
}