var popupWindow
function createNew (URL, w, h) {
  if (!popupWindow || popupWindow.closed) {
    popupWindow = window.open(URL,"_blank",'HEIGHT='+h+',WIDTH='+w+',scrollbars=yes,resizable=yes,toolbar=no,location=no,menubar=no')
  } else{
    //bring existing subwindow to the front
    popupWindow.focus()
  }
}

function redirect(location) {
  window.location = location;
}

function setup_data_tables() {
  $$('table.data tbody tr:nth-child(even)').each(function(row) {Element.addClassName(row, 'even-row')})
  $$('table.data tbody tr:nth-child(odd)').each(function(row) {Element.addClassName(row, 'odd-row')})
}