function goto(url){
	window.location = url + "ret="+document.URL;
}

function site_search(){
	//alert("comming soon");
	window.location = "search_site.php?k=" + document.searchform.k.value;
}
function site_search1(){
	//alert("comming soon");
	window.location = "search_site.php?k=" + document.searchform.k.value;
}
function change_lang(lang){
	//alert("change to " + document.URL);
	var current_url = document.URL;
	if(lang == "en"){
		current_url = current_url.replace("vie","eng");
	}else{
		current_url = current_url.replace("eng","vie");
	}
	//alert("change to " + current_url);
	window.location = current_url;
}
var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}
function enter_search_site(form){
	window.location = "search_site.php?k=" + document.myform.keyword.value;
	return false;	
}