function searchKeyword() {
     var q = document.getElementById('q').value;
     top.location.href = "/trip/search?q="+q;
  }

	function searchKeywordPress(e)  {
		if(keyCode(e) == 13){
			searchKeyword();
		}
	}

	function keyCode(e){ 
		var keynum;

		if(window.event) // IE
			keynum = e.keyCode;
		else if(e.which) // Netscape/Firefox/Opera
			keynum = e.which;
		return keynum;
	}


function changeLocation() {
   var sel = document.getElementById('locationSelect');
   var url = sel.options[sel.selectedIndex].value;
   if(url) {
      top.location.href = url;
   }
}