function Set_Cookie(name, value, expires, path, domain, secure) {
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime(today.getTime());

	/*
	if the expires variable is set, make the correct
	expires time, the current script below will set
	it for x number of days, to make it for hours,
	delete * 24, for minutes, delete * 60 * 24
	*/
	if (expires) {
		//expires = expires * 1000 * 60 * 60 * 24;
		expires = expires * 1000 * 60 ;
	}
	var expires_date = new Date(today.getTime() + (expires));

	document.cookie = name + "=" + escape(value) +
((expires) ? ";expires=" + expires_date.toGMTString() : "") +
((path) ? ";path=" + path : "") +
((domain) ? ";domain=" + domain : "") +
((secure) ? ";secure" : "");
}

function Get_CookieValue(check_name) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split(';');
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f

	for (i = 0; i < a_all_cookies.length; i++) {
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split('=');


		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

		// if the extracted name matches passed check_name
		if (cookie_name == check_name) {
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if (a_temp_cookie.length > 1) {
				cookie_value = unescape(a_temp_cookie[1].replace(/^\s+|\s+$/g, ''));
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if (!b_cookie_found) {
		return null;
	}
}

function Delete_Cookie(name, path, domain) {
	if (Get_Cookie(name)) document.cookie = name + "=" +
((path) ? ";path=" + path : "") +
((domain) ? ";domain=" + domain : "") +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

function Get_Cookie(name) {

	var start = document.cookie.indexOf(name + "=");
	var len = start + name.length + 1;
	if ((!start) && (name != document.cookie.substring(0, name.length))) {
		return null;
	}
	if (start == -1) return null;
	var end = document.cookie.indexOf(";", len);
	if (end == -1) end = document.cookie.length;
	return unescape(document.cookie.substring(len, end));
}

function IntroCookie(IntroURL)
{
	//Detected Cookie Browser
	var cookieEnabled=(navigator.cookieEnabled)? true : false;
	//if not IE4+ nor NS6+
	if (typeof navigator.cookieEnabled=="undefined" && !cookieEnabled){ 
		document.cookie="checkcookie"
		cookieEnabled=(document.cookie.indexOf("checkcookie")!=-1)? true : false 
	}

	if (cookieEnabled){
		if(!Get_Cookie('IntroTDK')){
			//Write Cookie
			Set_Cookie('IntroTDK','Intro Actived',5,'/','','');
			window.location.href = IntroURL;
		}
	}
}
function CheckCookie(IntroURL,Value)
{
//Detected Cookie Browser
	var cookieEnabled=(navigator.cookieEnabled)? true : false;
	//if not IE4+ nor NS6+
	if (typeof navigator.cookieEnabled=="undefined" && !cookieEnabled){ 
		document.cookie="checkcookie"
		cookieEnabled=(document.cookie.indexOf("checkcookie")!=-1)? true : false 
	}

	if(!Get_Cookie(Value)){
		//Write Cookie
		Set_Cookie(Value,'Register',5,'/','','');
		window.location.href = IntroURL;
	}
}

function IntroPopup(URL) {
	//Detected Cookie Browser
	var cookieEnabled = (navigator.cookieEnabled) ? true : false;
	//if not IE4+ nor NS6+
	if (typeof navigator.cookieEnabled == "undefined" && !cookieEnabled) {
		document.cookie = "checkcookie"
		cookieEnabled = (document.cookie.indexOf("checkcookie") != -1) ? true : false
	}

	if (cookieEnabled) {
		if (!Get_Cookie('PopupIntroWeb')) {
			//Write Cookie
			Set_Cookie('PopupIntroWeb', 'Popup Intro Actived', 10, '/', '', '');
			$('#popupIntro').html('<a href="#" target="_self" onclick="HidePopup();"><img alt="" src="/images/quangcao.png" width="580" height="255" border="0" /></a>');
			centerPopup("popupIntro");
			loadPopup("popupIntro");
		}
	}
}

function HidePopup() {
	disablePopup("popupIntro");
}

var popupStatus = 0;

//loading popup with jQuery magic!
function loadPopup(objPopup) {
	//loads popup only if it is disabled
	if (popupStatus == 0) {
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#" + objPopup).fadeIn("slow");
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(objPopup) {
	//disables popup only if it is enabled
	if (popupStatus == 1) {
		$("#backgroundPopup").fadeOut("slow");
		$("#" + objPopup).fadeOut("slow");
		popupStatus = 0;
	}
}

function disablePopup2(objPopup1, objPopup2) {
	//disables popup only if it is enabled
	if (popupStatus == 1) {
		$("#backgroundPopup").fadeOut("slow");
		$("#" + objPopup1).fadeOut("slow");
		$("#" + objPopup2).fadeOut("slow");
		popupStatus = 0;
	}
}

//centering popup
function centerPopup(objPopup) {
	//request data for centering
	var windowWidth  = $(document).width();
	var windowHeight = $(document).height();
	var ShowPopUpHeight = document.body.clientHeight;
	var popupHeight;
	if ($("#" + objPopup).height() > windowHeight) {
		popupHeight = windowHeight;
	}
	else {
		popupHeight = $("#" + objPopup).height();
	}
	var popupWidth = $("#" + objPopup).width();
	//centering
	$("#" + objPopup).css({
		"position": "absolute",
		"top": ShowPopUpHeight / 2 - popupHeight / 2,
		"left": windowWidth / 2 - popupWidth / 2
	});
	//$("#backgroundPopup").height(windowHeight);
	//only need force for IE6

	//$("#backgroundPopup").css({
	//	"height": windowHeight
	//});

}