function toggleSearch() {
  YAHOO.com.travLocal.searchDialog.cfg.setProperty("visible",!YAHOO.com.travLocal.searchDialog.cfg.getProperty("visible"));
  if(YAHOO.com.travLocal.searchDialog.cfg.getProperty("visible")) {
    document.getElementById('searchKeywords').focus();
  }
}

function trim(stringToTrim) {  
  return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function validateEmailAddress() {
   var email = document.getElementById('emailAddress');
   if(trim(email.value) == '') {
     document.getElementById('emailMeError').innerHTML = '<br/>Please provide a valid email address';
     return false;
   }
   return true;
}

function isdefined(theVar) {
  if(typeof(theVar) !="undefined") {
    return true; 
  } else {
    return false;
  }
}