function $(str)
{
	return 	document.getElementById(str);
}

function goSearch(e)
{
	var evt = e ? e :window.event; 
	if(evt.keyCode == 13)
	{
		startSearch();
	}
}

function startSearch()
{
	var keyword = $("searchbox").value;
	if(keyword == "")
	{
		$("errorinfo").innerHTML = "Please Enter Search Keyword";
		$("errorinfo").style.color = "#f00";
	}
	else
	{
		window.location = "/china-vacations/tours_search.aspx?keyword=" + keyword; 
	}
}