function hideCartIcon() {
  document.getElementById('cart_link').style.display = 'none';
}

function showCartIcon() {
  document.getElementById('cart_link').style.display = 'block';
}

function setWidthToFull() {
	document.getElementById('res_frame').style.width = '828px';
}

function setWidthToNarrow() {
	document.getElementById('res_frame').style.width = '625px';
}

function goto(page_name) {
  document.location = '/' + page_name;
}

function gotoInNewWindow(page_name) {
  window.open('/' + page_name, '', '');
}