function addToFavorite(title){
  window.external.AddFavorite(document.location,title)
}
function selected(id,value)
{
	myid=$(id);
	myvalue=value;
	for (var i=0;i<myid.length;i++)
	{
		if (myid[i].value==myvalue)
		{
			myid.selectedIndex=i;
			break;
		}
	}
}
function updateHTML(url,element)
{
	waitloading(element);
	var pars = '';
	var myAjax = new Ajax.Updater(
	{success: element},
	url,
	{
		method: 'get',
		parameters: pars,
		onFailure: reportError,
		evalScripts:true
	});
}
function waitloading(id) {
   parentObj = document.getElementById(id);
   parentObj.innerHTML = "<p align='center'><img src='images/ajax-loader.gif'>";
   parentObj.innerHTML = '<table width="100%" height="100%"><tr><td width="100%"><p align="center""><img src="images/ajax-loader.gif"></td></tr></table>';
}
function reportError(request)
{
	alert('Có lỗi xảy ra.');
}
function isEmail(string) {
	if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
	return true;
	else
	return false;
}