function showLoader() {
	$("#loading_result").html("<div style=\"position:fixed; top:50%; right:50%; text-align:center; width:90px; height:70px; padding-top:20px; z-index:99999999 \"><img src='/images/loading-icon1.gif'></div>").hide().fadeIn(10);
	block = true;
}
function closeLoader() {
	$("#loading_result").html("").hide().fadeOut('slow');
	block = false;
}
function showResult(type,data) {
	closeLoader();
	$("#"+type+"").html(data).hide().fadeIn('slow');
	block = false;
}

function load_dang_ky(mod){
	showLoader();
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act='+mod,
        dataType: "html",
        success: function(data){
           showResult("load_dk",data);
        }
    });
}
function dang_nhap_ok(frm){

var username = frm.user_name.value;
var password = frm.password.value;

if (username == "Username")
		{ 
	
		frm.user_name.focus();
		alert('Vui lòng nhập tên đăng nhập');	
			return false;
		}
		if (username == "")
		{ 
	
		frm.user_name.focus();
		alert('Vui lòng nhập tên đăng nhập');	
			return false;
		}
		
	if (password == "password")
		{ 
		frm.password.focus();
		alert('Vui lòng nhập tên mật khẩu');	
			return false;
		}
		if (password == "")
		{ 
		frm.password.focus();
		alert('Vui lòng nhập tên mật khẩu');	
			return false;
		}
	showLoader();
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act=dang_nhap_kt&txt_username='+username+'&txt_password='+password,
        dataType: "html",
        success: function(data){
           showResult("load_msg_dangnhap",data);
        }
    });
return false;
}
function thoat_dang_nhap(){

	showLoader();
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act=thoat',
        dataType: "html",
        success: function(data){
           showResult("luu_result",data);
        }
    });

}


function dang_ky_ok(frm){
	
username=frm.username.value
txt_ten =frm.name.value
congty=frm.congty.value
txt_email =frm.email.value
dienthoai =frm.dienthoai.value
diachi =frm.diachi.value
password =frm.password.value
password2=frm.password2.value

	
	
	if (username == "")
		{
		alert('Vui lòng nhập tên đăng nhập');
		frm.username.focus();
			return false;
			
		}
	if (password == "")
		{
		alert('Vui lòng nhập mật khẩu');
		frm.password.focus();
			return false;
		}
	if (password!=password2)
		{
		alert('Map khau 1 khong trung map khau 2');
		frm.password.focus();
			return false;
		}	
	if (txt_ten == "")
		{
		
		alert('Vui lòng nhập họ tên');	
		frm.name.focus();
			return false;
		}	
	if (txt_email == "")
		{
		alert('Vui lòng nhập email');
		frm.email.focus();
			return false;
		}
	
	
	
	 	
		
	email=txt_email
	if (!email.match(/^([-\d\w][-.\d\w]*)?[-\d\w]@([-\w\d]+\.)+[a-zA-Z]{2,6}$/)){
		alert('Địa chỉ email không hợp lệ.');
		frm.email.focus();
		return false;
		
	}
	showLoader();

    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: "act=kiem_tra_dk&txt_ten="+txt_ten+"&txt_congty="+congty+"&txt_email="+txt_email+"&txt_dien_thoai="+dienthoai+"&txt_dia_chi="+diachi+"&txt_username="+username+"&txt_password="+password,
        dataType: "html",
        success: function(data){
           showResult("show_mg",data);
        }
    });
	return false;
}
//thoat
function kt_member_signout()
{
	var	query	=	"act=kt_member_signout";
	var http 	=	khoitao_ajax();
	try
	{
/*		$$$('inner').innerHTML = "<center style='margin-top:50px'><img src='/images/loading.gif' /></center>";
*/		http.open("POST", "/action.php");
		http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		http.setRequestHeader("Cache-control", "no-cache");		
		http.onreadystatechange = function()
		{
			if (http.readyState == 4)
			{
				if (http.status == 200)
				{
					alert("Xin chào! Hẹn gặp lại bạn lần sau.");
					window.location.href = "/";
				}
				else
				{
						return false;
				}
			}
		}
		http.send(query);
	}
	catch (e)
	{
	}
	return false;
}
<!--cach gia-->
function SkipError()
{
	return true;
}


function checkbox_test(obj){  
  var counter = 0;  // counter for checked checkboxes  
  var i       = 0;  // loop variable  
  var url     = ''; // final url string  
  // get a collection of objects with the specified 'input' TAGNAME  
  var input_obj = obj;
  // loop through all collected objects  
  for (i=0; i < input_obj.length; i++){  
    // if input object is checkbox and checkbox is checked then ...  
    if (input_obj[i].type == 'checkbox' && input_obj[i].checked == true){  
      // ... increase counter and concatenate checkbox value to the url string  
      counter++;  
      url = url + '|' + input_obj[i].value;  
    }  
  }  
  // display url string or message if there is no checked checkboxes  
  if (counter > 0){  
    // remove first '&' from the generated url string  
    url = url.substr(1);  
    // display final url string  
	return url;
    // or you can send checkbox values  
    // window.location.href = 'my_page.php?' + url;  
  }  
  else return "";
}  




function loan_calculator_money(mnt){if(mnt.length<4)return mnt;mnt=loan_calculator_fmtMoney(mnt,0,'.',',');mnt=mnt.replace('N','00');return mnt;};function loan_calculator_fmtMoney(n,c,d,t){var m=(c=Math.abs(c)+1?c:2,d=d||",",t=t||".",/(\d+)(?:(\.\d+)|)/.exec(n+"")),x=m[1].length%3;return(x?m[1].substr(0,x)+t:"")+m[1].substr(x).replace(/(\d{3})(?=\d)/g,"$1"+t)+(c?d+(+m[2]).toFixed(c).substr(2):"");};var adGroupObjList=new Array();var adSize=new Array();var objMap=new Array();function BindData(l,gId,w,h){var n=l.length;if(n==0)return;else if(n==1){var player=document.getElementById("AdPlayer-"+gId);player.innerHTML=Build_Banners(gId,l[0].Id,l[0].IsImage?1:0,l[0].Url,l[0].ClickUrl," class='banner-"+w+"x"+h+"' ",l[0].Tooltip);return;}
else{var adObjList=new Array();for(var i=0;i<n;i++){var adObj=new Array();adObj.push(l[i].Id);adObj.push(l[i].Url);adObj.push(l[i].Tooltip);adObj.push(l[i].TTL);adObj.push(l[i].TTL);adObj.push(l[i].IsImage?1:0);adObj.push(l[i].ClickUrl);adObjList.push(adObj);}
adGroupObjList.push(adObjList);adSize.push(" class='banner-"+w+"x"+h+"' ");objMap.push(gId);var objIndex=0;var gIndex=jQuery.inArray(gId,objMap);var player=document.getElementById("AdPlayer-"+gId);player.innerHTML=Build_Banners(gId,adGroupObjList[gIndex][objIndex][0],adGroupObjList[gIndex][objIndex][5],adGroupObjList[gIndex][objIndex][1],adGroupObjList[gIndex][objIndex][6],adSize[gIndex],adGroupObjList[gIndex][objIndex][2]);AdLive(gId,objIndex);}}
function AdLive(gId,objIndex){var player=document.getElementById("AdPlayer-"+gId);var gIndex=jQuery.inArray(gId,objMap);if(adGroupObjList.length>0){adGroupObjList[gIndex][objIndex][4]--;if(adGroupObjList[gIndex][objIndex][4]==0){objIndex++;if(objIndex==adGroupObjList[gIndex].length){objIndex=0;for(var i=0;i<adGroupObjList[gIndex].length;i++)
adGroupObjList[gIndex][i][4]=adGroupObjList[gIndex][i][3];}
player.innerHTML=Build_Banners(gId,adGroupObjList[gIndex][objIndex][0],adGroupObjList[gIndex][objIndex][5],adGroupObjList[gIndex][objIndex][1],adGroupObjList[gIndex][objIndex][6],adSize[gIndex],adGroupObjList[gIndex][objIndex][2]);}
setTimeout(function(){AdLive(gId,objIndex)},1000);}}


function gia_change(gia,bien){

$('#gia_change').html(gia);
if(bien=='usd'){
$('#usd').addClass("gia_change");
$("#vnd").removeClass('gia_change');
$("#sjc").removeClass('gia_change');
}else
if(bien=='sjc'){
$('#usd').removeClass("gia_change");
$("#vnd").removeClass('gia_change');
$("#sjc").addClass('gia_change');
}else
if(bien=='vnd'){
$('#usd').removeClass("gia_change");
$("#vnd").addClass('gia_change');
$("#sjc").removeClass('gia_change');
}

}


function loadingthanhpho_ajax(url) {

 $('#load_quan').html('<p><img src="ajax-loader-2.gif/></p>');
 
    $('#load_quan').load(url,"",
        function(responseText, textStatus, XMLHttpRequest) {
            if(textStatus == 'error') {
                $('#load_quan').html('<p>There was an error making the AJAX request</p>');
            }
        }
    );
	
};



function load_upload_action(){

	showLoader();
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act=load_upload_hinh',
        dataType: "html",
        success: function(data){
           showResult("upload_result",data);
        }
    });

}




function delete_hinh(ten,id,bien){
	showLoader();
$('#hinh_delete_'+bien+'').hide();	
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act=delete_hinh&id='+id+'&ten='+ten,
        dataType: "html",
        success: function(data){
           showResult("loading_delete_hinh",data);
        }
    });

}
function delete_bds_thv(id,bien){
	showLoader();
$('#bds_'+bien+'').hide();	
    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: 'act=comment&bien=delete_bds&id='+id,
        dataType: "html",
        success: function(data){
           showResult("luu_result",data);
        }
    });

}


function timkiem_bds(frm){
	
txt_loaitin =frm.txt_loaitin.value
txt_loaibds=frm.txt_loaibds.value
txt_huong =frm.txt_huong.value
txt_tinhthanh =frm.txt_tinhthanh.value
txt_gia =frm.txt_gia.value
txt_quanhuyen =frm.txt_quanhuyen.value
	
	showLoader();

    $.ajax({
		    url:'/action.php',
     
        type: 'POST',
        data: "act=tim_kiem_bds&txt_loaitin="+txt_loaitin+"&txt_loaibds="+txt_loaibds+"&txt_huong="+txt_huong+"&txt_tinhthanh="+txt_tinhthanh+"&txt_gia="+txt_gia+"&txt_quanhuyen="+txt_quanhuyen,
        dataType: "html",
        success: function(data){
           showResult("show_timkiem",data);
        }
    });
	return false;
}