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 to emulate document.getElementsByTagName
*
* @param	object	Parent object (eg: document)
* @param	string	Tag type (eg: 'td')
*
* @return	array
*/
function fetch_tags(parentobj, tag)
{
	if (parentobj == null)
	{
		return new Array();
	}
	else if (typeof parentobj.getElementsByTagName != 'undefined')
	{
		return parentobj.getElementsByTagName(tag);
	}
	else if (parentobj.all && parentobj.all.tags)
	{
		return parentobj.all.tags(tag);
	}
	else
	{
		return new Array();
	}
}

/**
* Function to count the number of tags in an object
*
* @param	object	Parent object (eg: document)
* @param	string	Tag type (eg: 'td')
*
* @return	integer
*/
function fetch_tag_count(parentobj, tag)
{
	return fetch_tags(parentobj, tag).length;
}

function getCookie(Name) { 
	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
	if (document.cookie.match(re)) //if cookie found
	return document.cookie.match(re)[0].split("=")[1] //return its value
	return null
}

function setCookie(name, value, days) {
	var expireDate = new Date()
	//set "expstring" to either future or past date, to set or delete cookie, respectively
	var expstring=(typeof days!="undefined")? expireDate.setDate(expireDate.getDate()+parseInt(days)) : expireDate.setDate(expireDate.getDate()-5)
	document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_findObj(n, d) { //v4.01
  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=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function swapImg(o,obj) {
	o.src=obj;
}
function getURLParam(strParamName){
  var strReturn = "";
  var strHref = window.location.href;
  if ( strHref.indexOf("?") > -1 ){
    var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
    var aQueryString = strQueryString.split("&");
    for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
      if (
		aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
        var aParam = aQueryString[iParam].split("=");
        strReturn = aParam[1];
        break;
      }
    }
  }
  return strReturn;
}
//call return ActConfirm - Coded by Tuannv 21/10
function ActConfirm(confirmation_message)
{
	if (confirm(confirmation_message))
	{
		return true;
	}
	else
	{
		return false;
	}
}

function log_out(confirmation_message)
{
	var ht = document.getElementsByTagName("html")[0];
	ht.style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
	if (confirm(confirmation_message))
	{
		return true;
	}
	else
	{
		ht.style.filter = "";
		return false;
	}
}

function getAllQuery() {
  var strURL = document.location.href;
  var query = strURL.substr(strURL.indexOf("#")+1);
  return query;
}

function getQuery(variable) {
  var strURL = document.location.href;
  var query = strURL.substr(strURL.indexOf("#")+1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  }
  return "";
}

function gotoTop()
{
	window.scrollTo(0,0);
}

var xmlHttp;
function createXMLHttpRequest() {
	if (window.ActiveXObject) {
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else if (window.XMLHttpRequest) {
		xmlHttp = new XMLHttpRequest();
	}
}

function startRequest(strUrl, strDivName) {
	createXMLHttpRequest();
	xmlHttp.onreadystatechange = function(){
		if(xmlHttp.readyState == 4) {
			if(xmlHttp.status == 200) {
				document.getElementById(strDivName).innerHTML = xmlHttp.responseText;
			}
		}
		else
			document.getElementById(strDivName).innerHTML = "<br><p align=\"center\"><img border=\"0\" src=\"style/images/loading.gif\"></p><br>";
	};
	xmlHttp.open("GET",strUrl, true);
	xmlHttp.send(null);
}

function startPostRequest(strUrl, strDivName) {
	createXMLHttpRequest();
	xmlHttp.onreadystatechange = function(){
		if(xmlHttp.readyState == 4) {
			if(xmlHttp.status == 200) {
				document.getElementById(strDivName).innerHTML = xmlHttp.responseText;
			}
		}
		else
			document.getElementById(strDivName).innerHTML = "<br><p align=\"center\"><img border=\"0\" src=\"style/images/loading.gif\"></p><br>";
	};
	var strQuery = strUrl.substr(strUrl.indexOf('?')+1,strUrl.length);
	xmlHttp.open("POST",strUrl, true);
	xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;");
	xmlHttp.send(strQuery);
}


function ShowHideDiv(obj){
	if(fetch_object(obj).style.display==''){
		fetch_object(obj).style.display='none';
	}
	else{
		fetch_object(obj).style.display='';
	}
}

function out(e){
	if (e.srcElement.tagName == "DIV") {
		hideDiv();
	}
}