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

function checkKeyword(form) {
  form.strKeyword.value = form.strKeyword.value.replace(new RegExp("[+]","g"), "");
  form.strKeyword.value = form.strKeyword.value.replace(new RegExp("[*]","g"), "");
  form.strKeyword.value = trim(form.strKeyword.value);
  form.strAltword.value = form.strAltword.value.replace(new RegExp("[+]","g"), "");
  form.strAltword.value = form.strAltword.value.replace(new RegExp("[*]","g"), "");
  form.strAltword.value = trim(form.strAltword.value);
  if((form.strAltword.value=='')&&(form.strKeyword.value=='')) {
  form.strBoth.checked = false;
  return false;
  }
  else if((form.strAltword.value!='')&&(form.strKeyword.value=='')) {
  form.strKeyword.value = form.strAltword.value;
  form.strAltword.value = '';
  form.strBoth.checked = false;
  }
  else if((form.strAltword.value=='')&&(form.strKeyword.value!='')) {
  form.strBoth.checked = false;
  }
  else if(form.strKeyword.value==form.strAltword.value) {
  form.strAltword.value = '';
  form.strBoth.checked = false;
  }
  return true;
}

function setFocus() {
  if(intMenus>0) {
  document.forms[0].strKeyword.focus();
  document.forms[0].strKeyword.select();
  }
  else {
  document.getElementById("search").style.visibility = 'hidden';
  }
}