function trim(str) {
  while (str.charAt(str.length - 1)==" ")
    str = str.substring(0, str.length - 1);
  while (str.charAt(0)==" ")
    str = str.substring(1, str.length);
  return str;
}

function verifySearchForm()
{
  searchForm.kwd.value = trim(searchForm.kwd.value);
  if ((searchForm.kwd.value == "") || (searchForm.kwd.value == "Search Collection")) {
    alert ("Please enter painting ID# or a keyword to search (e.g., heaven, love, sun)");
    return (false);
  }
  return (true);
}