var popup_area = "";

var linkimg="http://usb3gvn.com/wp-content/uploads/popup.png";

var linkurl="http://usb3gvn.com/khuyen-mai-usb-3g";


popup_area += "<div id=\"popupContact\"><div><a id=\"popupContactClose\" href=\"#\">[x] &#272;&#243;ng l&#7841;i</a></div>";
popup_area += "<a href="+linkurl+" target=\"_blank\"><img src="+linkimg+" alt=\"\" /></a>";
popup_area += "</div><div id=\"backgroundPopup\"></div>";

//if (readCookie('open_popup') == ""){

//createCookie('open_popup', '1', 1);

document.write(popup_area);
//}