function areyousure(message)
{
  var result;
  result = window.showModalDialog('_refract/areyousure.asp', message, 'dialogWidth: 400px; dialogHeight: 180px; status: no;');
  return result == 'yes';
}

function showmessage(message)
{
  window.showModalDialog('_refract/showmessage.asp', message, 'dialogWidth: 320px; dialogHeight: 120px; status: no;');
}

function imagechooser(f, b)
{
  var image_id, xin=new Array(), xout;

  eval('image_id=document.' + f + '.' + b + '_id.value;');

  if (image_id == '')
    image_id = 0;

  xin['image_id'] = image_id;
  xout = window.showModalDialog('_refract/imagechooser.asp', xin, 'dialogWidth: 420px; dialogHeight: 350px; status: no;');

  if (xout['ok'] == 'yes')
  {
    eval('document.' + f + '.' + b + '_id.value=xout["image_id"];');
    eval('document.' + f + '.' + b + '_name.value=xout["name"];');
  }
}

function imageclear(f, b)
{
  eval('document.' + f + '.' + b + '_id.value=""');
  eval('document.' + f + '.' + b + '_name.value=""');
}

function canAccessPage(page_id, user_id) {
	if(!refract || !refract.user || !refract.user.data || !refract.user.data[user_id])
		return false;

	if(refract.user.data[user_id].administrator == 'y')
		return true;

	if(!refract.page || !refract.page.data || !refract.page.data[page_id])
		return false;

	if(refract.page.data[page_id].owner != 0)
		return (refract.page.data[page_id].owner == user_id);

	// Go back up the tree to find the source of permission for this page
	var permission_page_id = page_id;
	while(permission_page_id && refract.page.data[permission_page_id].owner != user_id)
		permission_page_id = refract.page.data[permission_page_id].parent_page_id;

	if(permission_page_id && refract.page.data[permission_page_id].owner == user_id)
		return true;

	return false;
}

function previewPage(page_id, version) {
	var previewWindow = window.open(hrefbase + '/driver.asp?command=preview&page_id=' + page_id + '&version=' + version + '&cb=' + Math.random().toString().slice(2), 'preview', 'width=820,height=600,scrollbars,resizable');
	previewWindow.focus();
}