var refeshPageTimer = null;

function $(id){
        if(typeof(id) == "string") return document.getElementById(id);
        else return id;
}

function RefeshPage(){
    if(typeof(isPost) == 'undefined'){
        window.location.reload();
    }
}

refeshPageTimer = setTimeout("RefeshPage()", 12000000);

function setHomePage2(){
    var isIE= navigator.userAgent.indexOf('MSIE') != -1;

    if(isIE) {
        var url = 'http://hiti.info.vn';

        var homePage = document.body;
        homePage.style.behavior = 'url(#default#homepage)';
        homePage.setHomePage(url);
    } else {
        alert('Nhấn tổ hợp phím [Ctrl+D] để đặt TriViet.Com.Vn làm homepage!');
    }
}

function addFavorite2(){
    var url = window.location.href;
    var title = document.title;
    if(document.all) {
        window.external.AddFavorite(url, 'TriViet.Com.Vn - ' + title);
    } else if(window.sidebar) {
        window.sidebar.addPanel('TriViet.Com.Vn - ' + title, url, '');
    }
}

var itv = 50;
var step = 10;
var start = 0;
var end = 0;
var currentOpac;
function changeOpac(obj, opacity) {
    var object = obj.style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}
function BeginOpacity(obj, s, e){
    start = s;
    end = e;
    currentOpac = s;
    theobject=obj;
    changing=setInterval("opacityit(theobject)",itv);
}

function EndOpacity(obj, end){
    clearInterval(changing);
    changeOpac(obj, end);
}
function opacityit(obj){
    if(start > end) {
        if (currentOpac>end){
            currentOpac = currentOpac - step;
            changeOpac(obj,currentOpac);
        } else if(window.highlighting) clearInterval(highlighting);
    } else if(start < end) {
        if (currentOpac<end){
            currentOpac = currentOpac + step;
            changeOpac(obj,currentOpac);
        } else if (window.changing) clearInterval(changing);
    }
}
function logout(){
    if(confirm('Bạn thật sự muốn đăng xuất khỏi hệ thống !?')) return true;
    else return false;
}

NewWindowPopUp = null;
function OpenWindow(src, wdth, hght, wcenter) {
   if (NewWindowPopUp != null) {
        NewWindowPopUp.close();
        NewWindowPopUp = null;
   }
   if (wcenter == false) {
      wtop = 0;
      wleft = 0;
   } else {
        wtop = (screen.availHeight-hght)/2;
        wleft = (screen.availWidth-wdth)/2;
   }
   NewWindowPopUp = window.open(src, "","toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=yes,status=no,directories=no,resizable=yes,height="+hght+",width="+wdth+",top="+wtop+",left="+wleft+"");
   NewWindowPopUp.focus();
}

function Set_Cookie(name, value, expires, path, domain, secure){
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) expires = expires * 1000 * 60 * 60 * 24;
	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_Cookie(check_name) {
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false;
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		a_temp_cookie = a_all_cookies[i].split( '=' );
        cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
        if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}
function roll_over(img_name, img_src){
   document[img_name].src = img_src;
}