/* - - - - - - - - - - - - - - - - - - - - - - -
Ajax Javascript
 - - - - - - - - - - - - - - - - - - - - - - - */
var ie45,ns6,ns4,dom;
if (navigator.appName=="Microsoft Internet Explorer") ie45=parseInt(navigator.appVersion)>=4;
else if (navigator.appName=="Netscape"){  ns6=parseInt(navigator.appVersion)>=5;  ns4=parseInt(navigator.appVersion)<5;}
dom=ie45 || ns6;

var http=createRequestObject();
var objectId = '';
var loadok = 0;

function createRequestObject(htmlObjectId){
    var obj;
    var browser = navigator.appName;
    
    if(browser == "Microsoft Internet Explorer"){
        obj = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else{
        obj = new XMLHttpRequest();
    }
    return obj;    
}

function send_post(strurl, parameters,objId) {      
  objectId = objId;
  //lert (parameters);
  //alert (parameters);
  http.open('POST', strurl, true);
  http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  http.setRequestHeader("Content-length", parameters.length);
  http.setRequestHeader("Connection", "close");
  http.onreadystatechange = handleResponse;
  http.send(parameters);
}

function sendReq(serverFileName, variableNames, variableValues,objId) {
	var paramString = '';
	
	objectId = objId;
	
	variableNames = variableNames.split(',');
	variableValues = variableValues.split(',');
	
	for(i=0; i<variableNames.length; i++) {
		paramString += variableNames[i]+'='+variableValues[i]+'&';
	}
	paramString = paramString.substring(0, (paramString.length-1));
			
	if (paramString.length == 0) {
	   	http.open('get', serverFileName);
	}
	else {
		http.open('get', serverFileName+'?'+paramString);
	}
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
	
	if (http.readyState == 4) {
		responseText = http.responseText;
		getobj(objectId).innerHTML = responseText;
    } else {
		getobj(objectId).innerHTML = "";
	}
		
}

function change_icon(imgDocID,url) {
document.images[imgDocID].src = url;
}  

function showhide(id) {
el = document.all ? document.all[id] :   dom ? document.getElementById(id) :   document.layers[id];
els = dom ? el.style : el;
  if (dom){
    if (els.display == "none") {
        els.display = "";
      } else {
        els.display = "none";
      }
    }
  else if (ns4){
    if (els.display == "show") {
        els.display = "hide";
      } else { 
      els.display = "show";
         }
  }
}

function getobj(id) {
el = document.all ? document.all[id] :   dom ? document.getElementById(id) :   document.layers[id];
return el;
}

function showobj(id) {
obj=getobj(id);
els = dom ? obj.style : obj;
 	if (dom){
	    els.display = "";
    } else if (ns4){
        els.display = "show";
  	}
}

function hideobj(id) {
obj=getobj(id);
els = dom ? obj.style : obj;
 	if (dom){
	    els.display = "none";
    } else if (ns4){
        els.display = "hide";
  	}
}

// khong the phong to cua so
function openPopUp(url, windowName, w, h, scrollbar) {
   var winl = (screen.width - w) / 2;
   var wint = (screen.height - h) / 2;
   winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scrollbar ;
   win = window.open(url, windowName, winprops);
   if (parseInt(navigator.appVersion) >= 4) { 
       	win.window.focus(); 
   } 
}

// co the phong to cua so
var win=null;
function NewWindow(mypage,myname,w,h,scroll,pos){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';
win=window.open(mypage,myname,settings);}

//============================================================


function is_num(event,f){
	if (event.srcElement) {kc =  event.keyCode;} else {kc =  event.which;}
	if ((kc < 47 || kc > 57) && kc != 8 && kc != 0) return false;
	return true;
}

function findObj(n, d) {
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function ToggleTextView(s, l, t, b)
{
 var $ = function (id) {return document.getElementById(id); };
 s=$(s); l=$(l); t=$(t); b=$(b);
 if (t) { t.detailView = !t.detailView; t.innerHTML=t.detailView?l.innerHTML:s.innerHTML; b.innerHTML=t.detailView?"[-]":"[+]"; }
}
function log_out(theURL){
		ht = document.getElementsByTagName("body");
		ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
		if (confirm('Do you want logout ? '))
		{
			
			ht[0].style.filter = "";
			window.location.href=theURL;
			return true;
		}
		else
		{
			ht[0].style.filter = "";
			return false;
		}
}
function submitDoc(formName) { 
  var obj;
 
	if (obj=findObj(formName)!=null) 
	{
		findObj(formName).submit(); 
	}
	else 
	{
		alert('The form you are attempting to submit called \'' + formName + '\' couldn\'t be found. Please make sure the submitDoc function has the correct id and name.');
	}

}


function do_mailist(f) {
	furl = 'act:mail_list|f_email:'+f.f_email.value;
	sendReq('index.php', 'cmd', furl,'ext_maillist');
	return false;
}

function do_sendmail(f) {
	furl = 'act:tellfriend|f_email:'+f.f_email.value;
	sendReq('index.php', 'cmd', furl,'ext_tellfriend');
	return false;
}

function show_comment(p_id,mem_id,lang) {
	key='id,mem_id,lang';
	value = p_id+','+mem_id+','+lang;
	url ='ajax/_do_comment.php';
	sendReq(url,key ,value,'ext_comment');
}

function del_maillist() {
	f_email = getobj('f_email').value;
	furl = 'act:mail_list|f_email:'+ f_email + '|dodel:1' ;
	sendReq('index.php', 'cmd', furl,'ext_maillist');
}


function do_AddCart(id){
	quantity = 'quantity'+id;
	quan = getobj(quantity).value ;
	
	if (quan==0) {
		alert (mess_alert['quantity_empty'])	
	}else{
		location.href='?cmd=act:cart|do:add|p_id:'+id+'|quantity:'+quan;
	}
	
}

function PriceToEmail(){
	cat_id = getobj('model_c').value ;
	if (cat_id==0){
		alert (mess_alert['model_empty'])	
	}else{
		producer = getobj('producer_c').value ;
		p_id = getobj('product').value ;
		location.href='?cmd=act:price_to_email|cat_id:'+cat_id+'|producer:'+producer+'|p_id:'+p_id;	
	}
	
}

function ViewComment(){
	
	p_id = getobj('product').value ;
	if (p_id==0) {
		alert (mess_alert['product_empty'])
	}else{
		location.href='?cmd=act:product_detail|p_id:'+p_id+'#Comment';
	}
}

function GoProduct(){
	
	p_id = getobj('product').value ;
	if (p_id==0) {
		alert (mess_alert['product_empty'])
	}else{
		location.href='?cmd=act:product_detail|p_id:'+p_id;
	}
}


function CompareProduct(){
	
	p_id = getobj('product').value ;
	if (p_id==0) {
		alert (mess_alert['compare_product_empty'])
	}else{
		location.href='?cmd=act:compare_product|p_id:'+p_id;
	}
}


function show_comment(p_id,mem_id,lang) {
	key='id,mem_id,lang';
	value = p_id+','+mem_id+','+lang;
	url ='ajax/_do_comment.php';
	sendReq(url,key ,value,'ext_comment');
}

function do_comment(f,p_id,mem_id,lang) {
	
	var re =/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,5})$/gi;
	
	
	var email =f.email.value;
	if (email == '') 	{
		alert('Vui lònh nhập email của bạn');
		f.email.focus();
		return false;
	}
		
	if (f.email.value != '' && f.email.value.match(re)==null) {
		alert('Email của bạn không hợp lệ ');
		f.email.focus();
		return false;
	}
	
	var title =f.title.value;
	if (f.title.value == '') 	{
		alert('Vui lòng nhập tiêu đề');
		f.title.focus();
		return false;
	}
	
	var content =f.content.value;
	if (f.content.value == '') {
		alert('Vui lòng nhập nội dung ');
		f.content.focus();
		return false;
	}
	
	title = encodeURIComponent(title);
	email = encodeURIComponent(email);
	content = encodeURIComponent(content);
	
	var strpara = 'title='+title+'&email='+email+'&content='+content;
	
	furl = 'ajax/_do_comment.php?id='+p_id+'&mem_id='+mem_id+'&lang='+lang+'&do_submit=1';
	send_post(furl,strpara,'ext_comment');
	
	return false;
}


function show_write_faqs() {
	furl = 'act:faqs|do:write';
	sendReq('index.php','cmd', furl,'ext_faqs');
	return false;
}


function do_write_faqs(f) {
		
		var name = f.name.value;
		if (name == '') {
			alert(mess_err['name_empty']);
			f.name.focus();
			return false;
		}
		var re =/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,5})$/gi;
		var email = f.email.value;
		if (email == ''){
			alert(mess_err['email_empty']);
			f.email.focus();
			return false;
		}
		if (email.match(re)==null)
		{
			alert(mess_err['email_invalid']);
			f.email.focus();
			return false;
		}	
		var title = f.title.value;
		if (title == '') {
			alert(mess_err['question_empty']);
			f.title.focus();
			return false;
		}
		
	
	var strpara = 'name='+encodeURIComponent(name)+'&email='+encodeURIComponent(email)+'&title='+encodeURIComponent(title);
	furl = 'index.php?cmd=act:faqs|do:write|do_submit:1';
	send_post(furl,strpara,'ext_faqs');
	return false;
}

function show_faqs(id) {
	furl = 'act:faqs|do:view|f_id:'+id;
	sendReq('index.php','cmd',furl,'ext_faqs');
	return false;
}


function LoadPrice(price,lang) {
	key='price,lang';
	value = price+','+lang;
	url ='ajax/_load_price.php';
	sendReq(url,key ,value,'ext_price');
}


function load_item (do_action,cat_id,p_id,p_name,price,quantity,session)
{
		var obj_pname = 'pname_'+cat_id;
		var obj_price = 'price_'+cat_id;
		var obj_quantity = 'quantity_'+cat_id;
		var obj_action = 'action_'+cat_id;
		var obj_remove = 'remove_'+cat_id;
		
		
		getobj(obj_pname).innerHTML = p_name;
		if(price){
			getobj(obj_price).innerHTML = '$'+price;
		}else{
			getobj(obj_price).innerHTML = '';
		}
		
		getobj(obj_quantity).innerHTML = quantity;
		
		if(do_action=='del')
		{
				getobj(obj_action).innerHTML = '<a href="#Select" onClick="NewWindow(\'popup/product.php?do=add&cat_id='+cat_id+'&lang=vn\',\'Select\',850,600,\'yes\',\'center\')" >Chọn</a>';
				getobj(obj_remove).innerHTML = '<a href="#" onClick="alert(\'Chưa có gì để xóa\')" ><img src="images/remove.gif" ></a>';
				
		}else{
			getobj(obj_action).innerHTML = '<a href="#Select" onClick="NewWindow(\'popup/product.php?do=edit&cat_id='+cat_id+'&lang=vn\',\'Select\',850,600,\'yes\',\'center\')" >Đổi</a>';
				getobj(obj_remove).innerHTML = '<a href="#" onClick="load_item(\'del\','+cat_id+','+p_id+',\'\',\'\',\'\','+session+'\')" ><img src="images/remove.gif" ></a>';	
		}
		
		key='do,cat_id,p_id,quantity,session';
		value = do_action+','+cat_id+','+p_id+','+quantity+','+session;
		url ='ajax/_update_cart.php';
		sendReq(url,key ,value,'ext_total');
}


function clear_item (theURL)
{
		 if (confirm('Bạn có chắc muốn XOÁ không ?')) {
				window.location.href=theURL;
		 }
}