// Sniffer based on http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
var uagent    = navigator.userAgent.toLowerCase();
var is_safari = ( (uagent.indexOf('safari') != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var is_opera  = (uagent.indexOf('opera') != -1);
var is_webtv  = (uagent.indexOf('webtv') != -1);
var is_ie	= ( (uagent.indexOf('msie') != -1) && (!is_opera) && (!is_safari) && (!is_webtv) );
var is_moz    = ( (navigator.product == 'Gecko')  && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_ns	= ( (uagent.indexOf('compatible') == -1) && (uagent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_kon    = (uagent.indexOf('konqueror') != -1);
var is_win    = ( (uagent.indexOf("win") != -1) || (uagent.indexOf("16bit") !=- 1) );
var is_mac    = ( (uagent.indexOf("mac") != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var ua_vers   = parseInt(navigator.appVersion);
var is_regexp = (window.RegExp) ? true : false;
function $(oid){
	return (!oid) ? null : document.getElementById(oid);
}
function fetch_object(idname){
	if (document.getElementById){
		return document.getElementById(idname);
	}
	else if (document.all){
		return document.all[idname];
	}
	else if (document.layers){
		return document.layers[idname];
	}
	else{
		return null;
	}
}
function show_provinces_list(){
	var this_show_province_id = fetch_object('province_ch_list');
	this_show_province_id.style.display='block';
}
function hide_provinces_list(){
	var this_show_province_id = fetch_object('province_ch_list');
	this_show_province_id.style.display='none';
}
function set_cookie(name, value, expires){
	document.cookie = name + '=' + escape(value) + '; path=/' + (typeof expires != 'undefined' ? '; expires=' + expires.toGMTString() : '');
}
function delete_cookie(name){
	document.cookie = name + '=' + '; expires=Thu, 01-Jan-70 00:00:01 GMT' +  '; path=/';
}
function fetch_cookie(name){
	cookie_name = name + '=';
	cookie_length = document.cookie.length;
	cookie_begin = 0;
	while (cookie_begin < cookie_length){
		value_begin = cookie_begin + cookie_name.length;
		if (document.cookie.substring(cookie_begin, value_begin) == cookie_name){
			var value_end = document.cookie.indexOf (';', value_begin);
			if (value_end == -1){
				value_end = cookie_length;
			}
			return unescape(document.cookie.substring(value_begin, value_end));
		}
		cookie_begin = document.cookie.indexOf(' ', cookie_begin) + 1;
		if (cookie_begin == 0){
			break;
		}
	}
	return null;
}
function popupwin(url, width, height, scroll, pos, winname){
	if(pos=="center"){
		LeftPosition=(screen.width)?(screen.width-width)/2:100;
		TopPosition=(screen.height)?(screen.height-height)/2:100;
	}
	else if((pos!="center" && pos!="random") || pos==null){
		LeftPosition=100;
		TopPosition=100;
	}
	if(scroll == null){
		scroll = "no";
	}else{
		scroll = scroll;
	}
	var	name = (winname != null) ? winname : "miniwin";
	argvs='width='+width+',height='+height+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';
	var win = window.open(url, name, argvs);
}
function textCounter(field, countfield, maxlimit) {
	if (field.value.length > maxlimit){
		field.value = field.value.substring(0, maxlimit);
	}else{
		document.getElementById('cCharLeft').innerHTML = field.value.length;
	}
}
function checkMaxchar(field, maxlength){
	if (field.value.length > maxlength){
		textCounter(field, "", maxlength)
		alert("Bạn chỉ được nhập tối đa là " + maxlength + " ký tự trong phần này!");
		return false;
	}else{
	return true;
	}
}
function radio_list(fieldvalue,fieldname){
	var field_count = fieldname.length;
	for (i=0;i<field_count;i++){
		if (fieldvalue==fieldname[i].value){
			fieldname[i].checked=true;
			break;
		}
	}
}
function checkbox_list(fieldvalue,fieldname){
	if (fieldvalue==fieldname.value){
		fieldname.checked=true;
	}
}
function select_list(fieldvalue,fieldname){
	var option_count = fieldname.options.length;
	for ( i = 0; i < option_count; i++ ){
		if (fieldvalue == fieldname.options[i].value){
			fieldname.options[i].selected=true;
			break;
		}
	}
}
function toggle_collapse(objid){
	if (!is_regexp){
		return false;
	}
	obj = fetch_object('collapseobj_' + objid);
	img = fetch_object('collapseimg_' + objid);
	cel = fetch_object('collapsecel_' + objid);
	if (!obj){
		if (img){
			img.style.display = 'none';
		}
		return false;
	}
	if (obj.style.display == 'none'){
		obj.style.display = '';
		save_collapsed(objid, false);
		if (img){
			img_re = new RegExp("_collapsed\\.gif$");
			img.src = img.src.replace(img_re, '.gif');
		}
		if (cel){
			cel_re = new RegExp("^(tgroup|thead|tcat)(_collapsed)$");
			cel.className = cel.className.replace(cel_re, '$1');
		}
	}
	else{
		obj.style.display = 'none';
		save_collapsed(objid, true);
		if (img){
			img_re = new RegExp("\\.gif$");
			img.src = img.src.replace(img_re, '_collapsed.gif');
		}
		if (cel){
			cel_re = new RegExp("^(tgroup|thead|tcat)$");
			cel.className = cel.className.replace(cel_re, '$1_collapsed');
		}
	}
	return false;
}
function save_collapsed(objid, addcollapsed){
	var collapsed = fetch_cookie('odgat_collapse');
	var tmp = new Array();
	if (collapsed != null){
		collapsed = collapsed.split('\n');
		for (var i in collapsed){
			if (collapsed[i] != objid && collapsed[i] != ''){
				tmp[tmp.length] = collapsed[i];
			}
		}
	}
	if (addcollapsed){
		tmp[tmp.length] = objid;
	}
	expires = new Date();
	expires.setTime(expires.getTime() + (1000 * 86400 * 365));
	set_cookie('odgat_collapse', tmp.join('\n'), expires);
}
function XMLEncode(str){
	str = trim(str);
	str = str.replace("&","&amp;");
	str = str.replace("<","&lt;");
	str = str.replace(">","&gt;");
	str = str.replace("'","&apos;");
	str = str.replace("\"","&quot;");
	return str;
}
function XMLDecode(str){
	str = str.replace("&amp;","&");
	str = str.replace("&lt;","<");
	str = str.replace("&gt;",">");
	str = str.replace("&apos;","'");
	str = str.replace("&quot;","\"");
	return str;
}
function checknumber(x){
	var anum=/(^\d+$)|(^\d+\.\d+$)/;
	if (anum.test(x)){
		testresult=true;
	}
	else{
		testresult=false;
	}
	return (testresult)
}
function checkEmail(field){
	var str = field.value;
	var pattern = /^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-]+)+/;
	var flag = pattern.test(str);
 	if(!flag){
 	 	return false;
 	}
	return true;
}
function check_url(field){
	var is_protocol_ok=field.value.indexOf('http://');
	if (is_protocol_ok==-1){
		return false;
 	}
	return true;
}
function addbookmark(){
	if(window.sidebar){
		window.sidebar.addPanel(document.title,document.location.href,"");
	}
	else if( document.all ){
		window.external.AddFavorite(document.location.href,document.title);
	}
	else{
		alert("Xin lỗi! Trình duyệt của bạn không hỗ trợ Bookmark!");
	}
}
function sethomepage(url){
	if(is_ie || is_ie4 || is_win){
		document.body.style.behavior='url(#default#homepage)';
		document.body.setHomePage(url);
	}
	else{
		alert("Xin lỗi! Trình duyệt của bạn không hỗ trợ setHomepage!");
	}
}
function getPageScroll(){
	var yScroll;
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	}
	else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}
	return yScroll;
}
function getPageSize() {
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	}else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}
	pageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
	return pageSize;
}
function zoomKeyDown(e) {
	var Esc = (window.event) ? 27 : e.DOM_VK_ESCAPE;
	var c = (window.event) ? event.keyCode : e.keyCode;
	if (c == Esc) { close_fullimage(); }
}
function hideSelectBoxIE(){
	var ddb = document.getElementsByTagName('select');
	var count = ddb.length;
	if(count){
		for (i = 0; i < count; i++){
			if (ddb[i].style.display == 'none'){
				ddb[i].style.display = '';
			}else{
				ddb[i].style.display = 'none';
			}
		}
	}
}
function showOverlay(pageHeight){
	var overlay = fetch_object('overlay');
	overlay.style.height = (pageHeight + 'px');
	overlay.style.display = 'block';
	overlay.style.backgroundColor = '#000';
	document.onkeypress = zoomKeyDown;
	if(is_ie) {
		hideSelectBoxIE();
	}
}
function hideOverlay(){
	var overlay 	= fetch_object('overlay');
	overlay.style.display = '';
	document.onkeypress = '';
	if(is_ie) {
		hideSelectBoxIE();
	}
}
//O phan footer
function show_fullimage_cb(data){
	var pageSize 	= getPageSize();
    var pageScroll	= getPageScroll();
	showOverlay(pageSize[1]);
 	var popupTop 	=  pageScroll + (pageSize[3] - 35 - 430) / 2;
    var popupLeft 	=  (pageSize[0] - 20 - 700) / 2;
	var framebox = fetch_object("div_popup");
	framebox.className = 'popup_open';
	framebox.style.top = (popupTop < 0) ? '0px' : popupTop + 'px';
	framebox.style.left = (popupLeft < 0) ? '0px' : popupLeft + 'px';
	framebox.innerHTML = data;
}
function close_fullimage(){
	var framebox 	= fetch_object("div_popup");
	framebox.className = 'popup_close';
	hideOverlay();
}
function show_thumbimage_cb(data){
	framebox = fetch_object("div_thumbimage");
	framebox.innerHTML = data;
	return false;
}
function call_show_thumbimage(flag, id){
	x_show_thumbimage(flag, id, show_thumbimage_cb);
}
var downTime=5;
function addto_favorite_cb(data){
	close_msgbox();
	framebox = fetch_object("div_addfav");
	framebox.style.display = 'block';
	framebox.className = "ajaxmsgbox";
	framebox.innerHTML = data;
	return false;
}
function call_addto_favorite(type, id){
	x_addto_favorite(type,id,addto_favorite_cb);
}
function close_msgbox(){
	framebox = fetch_object("div_addfav");
	downTime--;
	if(downTime<=0){
		downTime=10;
		clearTimeout(counter);
		framebox.style.display = 'none';
	}
	counter=setTimeout("close_msgbox()", 1000);
}
function load_vipads_cb(data){
	framebox = fetch_object("divads_list");
	framebox.innerHTML = data;
	return false;
}
function call_load_vipads(data){
	framebox = fetch_object("divads_list");
	framebox.innerHTML = loading_img;
	x_show_load_vipads(data,load_vipads_cb);
}
function load_user_vipads_cb(data){
	framebox = fetch_object("divads_list");
	framebox.innerHTML = data;
	return false;
}
function call_load_user_vipads(data){
	framebox = fetch_object("divads_list");
	framebox.innerHTML = loading_img;
	x_show_load_user_vipads(data,load_user_vipads_cb);
}
function load_user_ads_cb(data){
	framebox = fetch_object("divads_user_list");
	framebox.innerHTML = data;
	return false;
}
function call_load_user_ads(data){
	framebox = fetch_object("divads_user_list");
	framebox.innerHTML = loading_img;
	x_show_load_user_ads(data,load_user_ads_cb);
}
function call_load_ADTAB_ads_cb(data){
	framebox = fetch_object("AD_"+this_default_type);
	framebox.innerHTML = data;
	return false;
}
function call_load_ADTAB_ads(data){
	framebox = fetch_object("AD_"+this_default_type);
	framebox.innerHTML = loading_img;
	x_show_load_ADTAB_ads(data,call_load_ADTAB_ads_cb);
}
function tab_adsdesc_cb(data){
	framebox = fetch_object("div_tabcontent");
	framebox.innerHTML = data;
	return false;
}
function call_tab_adsdesc(id){
	framebox = fetch_object("div_tabcontent");
	framebox.innerHTML = loading_img;
	x_show_tab_adsdesc(id,tab_adsdesc_cb);
}
function tab_adscontact_cb(data){
	framebox = fetch_object("u_contact");
	framebox.innerHTML = data;
	return false;
}
function call_tab_adscontact(id){
	framebox = fetch_object("u_contact");
	framebox.innerHTML = loading_img;
	x_show_tab_adscontact(id,tab_adscontact_cb);
}
function dotab_adscontact_cb(data){
	framebox = fetch_object("u_contact");
	framebox.innerHTML = data;
	return false;
}
function call_dotab_adscontact(id,name,email,subject,content,confimg,confid){
	framebox = fetch_object("u_contact");
	framebox.innerHTML = loading_img;
	x_do_tab_adscontact(id,name,email,subject,content,confimg,confid,dotab_adscontact_cb);
}
function tab_userinfo_cb(data){
	framebox = fetch_object("u_info");
	framebox.innerHTML = data;
	return false;
}
function call_tab_userinfo(id){
	framebox = fetch_object("u_info");
	framebox.innerHTML = loading_img;
	x_show_tab_userinfo(id,tab_userinfo_cb);
}
function tab_postreview_cb(data){
	framebox = fetch_object("mem_post_review");
	framebox.innerHTML = data;
	return false;
}
function call_tab_postreview(id){
	framebox = fetch_object("mem_post_review");
	framebox.innerHTML = loading_img;
	x_show_tab_postreview(id,tab_postreview_cb);
}
function dotab_postreview_cb(data){
	framebox = fetch_object("mem_post_review");
	framebox.innerHTML = data;
	return false;
}
function call_dotab_postreview(id,rateval,title,content){
	framebox = fetch_object("mem_post_review");
	framebox.innerHTML = loading_img;
	x_do_tab_postreview(id,rateval,title,content,dotab_postreview_cb);
}
function show_tab_review_cb(data){
	framebox = fetch_object("u_review");
	framebox.innerHTML = data;
	return false;
}
function call_tab_review(id,start,sortby){
	framebox = fetch_object("u_review");
	framebox.innerHTML = loading_img;
	x_show_tab_review(id,start,sortby,show_tab_review_cb);
}
function log_out(){
	ht = document.getElementsByTagName("body");
	ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
	if (confirm('Bạn muốn thoát khỏi hệ thống?')){
		return true;
	}
	else{
		ht[0].style.filter = "";
		return false;
	}
}