// returns true if the string is empty
function isEmpty(s){
	return(s==null||s.length==0); //false isnot empty
}
// returns true if the string only contains characters A-Z or a-z
function isAlpha(str){
  var re = /[^a-zA-Z]/g
  if (re.test(str)) return false;
  return true;
}
// returns true if the string only contains characters 0-9
function isNumber(s){
	var r=/^\d+$/;return r.test(s);
}
// returns true if the string only contains characters A-Z, a-z or 0-9
function isAlphanumeric(s){
	var r=/^[a-zA-Z0-9]+$/;return r.test(s);
}
/**********************************************************************
	IN:
		NUM - the number to format
		decimalNum - the number of decimal places to format the number to
		bolLeadingZero - true / false - display a leading zero for
										numbers between -1 and 1
		bolParens - true / false - use parenthesis around negative numbers
		bolCommas - put commas as number separators.
 
	RETVAL:
		The formatted number!
 **********************************************************************/
function FormatNumber(num,decimalNum,bolLeadingZero,bolParens,bolCommas)
{ 
        if (isNaN(parseInt(num))) return "NaN";

	var tmpNum = num;
	var iSign = num < 0 ? -1 : 1;		// Get sign of number
	
	// Adjust number so only the specified number of numbers after
	// the decimal point are shown.
	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(Math.abs(tmpNum))
	tmpNum /= Math.pow(10,decimalNum);
	tmpNum *= iSign;					// Readjust for sign
	
	
	// Create a string object to do our formatting on
	var tmpNumStr = new String(tmpNum);

	// See if we need to strip out the leading zero or not.
	if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
		if (num > 0)
			tmpNumStr = tmpNumStr.substring(1,tmpNumStr.length);
		else
			tmpNumStr = "-" + tmpNumStr.substring(2,tmpNumStr.length);
		
	// See if we need to put in the commas
	if (bolCommas && (num >= 1000 || num <= -1000)) {
		var iStart = tmpNumStr.indexOf(".");
		if (iStart < 0)
			iStart = tmpNumStr.length;

		iStart -= 3;
		while (iStart >= 1) {
			tmpNumStr = tmpNumStr.substring(0,iStart) + "," + tmpNumStr.substring(iStart,tmpNumStr.length)
			iStart -= 3;
		}		
	}

	// See if we need to use parenthesis
	if (bolParens && num < 0)
		tmpNumStr = "(" + tmpNumStr.substring(1,tmpNumStr.length) + ")";

	return tmpNumStr;		// Return our formatted string!
}

function ReplaceAll(iStr, v1, v2)
{
	var i = 0, oStr = '', j = v1.length;
	while (i < iStr.length)
	{
		if (iStr.substr(i, j) == v1)

		{
			oStr+=v2;
			i+=j
		}
		else
		{
			oStr+=iStr.charAt(i);
			i++;
		}
	}
	return oStr;
}
// Format number by using 1000 seperator
function FormatN(num) 
{
	var n = ReplaceAll(num,',','');
	if (n == '') return '0';
	var no = FormatNumber(parseInt(n),false,false,false,true);
	return no;
}
// returns true if the string's length equals "len"
function isLength(str, len){
  return str.length == len;
}
// returns true if the string's length is between "min" and "max"
function isLengthBetween(str, min, max){
  return (str.length >= min)&&(str.length <= max);
}
// returns true if the string is a valid date formatted as...
// mm dd yyyy, mm/dd/yyyy, mm.dd.yyyy, mm-dd-yyyy
function isDate(str){
  var re = /^(\d{1,2})[\s\.\/-](\d{1,2})[\s\.\/-](\d{4})$/
  if (!re.test(str)) return false;
  var result = str.match(re);
  var m = parseInt(result[1]);
  var d = parseInt(result[2]);
  var y = parseInt(result[3]);
  if(m < 1 || m > 12 || y < 1900 || y > 2100) return false;
  if(m == 2){
          var days = ((y % 4) == 0) ? 29 : 28;
  }else if(m == 4 || m == 6 || m == 9 || m == 11){
          var days = 30;
  }else{
          var days = 31;
  }
  return (d >= 1 && d <= days);
}
// returns true if "str1" is the same as the "str2"
function isMatch(str1, str2){
  return str1 == str2;
}
// returns true if the string contains only whitespace
// cannot check a password type input for whitespace
function isWhitespace(str){ // NOT USED IN FORM VALIDATION
  var re = /[\S]/g
  if (re.test(str)) return false;
  return true;
}
// removes any whitespace from the string and returns the result
// the value of "replacement" will be used to replace the whitespace (optional)
function stripWhitespace(str, replacement){// NOT USED IN FORM VALIDATION
  if (replacement == null) replacement = '';
  var result = str;
  var re = /\s/g
  if(str.search(re) != -1){
    result = str.replace(re, replacement);
  }
  return result;
}
//
function identify_Browser(){
	d=document;
	this.agt=navigator.userAgent.toLowerCase();
	this.major=parseInt(navigator.appVersion);
	this.dom=(d.getElementById);
	this.ns=(d.layers);
	this.ns4up=(this.ns && this.major>=4);
	this.ns6=(this.dom&&navigator.appName=="Netscape");
	this.op=(window.opera);
	if(d.all)this.ie=1;else this.ie=0;
	this.ie4=(d.all&&!this.dom);
	this.ie4up=(this.ie&&this.major>=4);
	this.ie5=(d.all&&this.dom);
	this.ie6=(d.nodeType);
	this.sf=(this.agt.indexOf("safari")!=-1);
	this.win=((this.agt.indexOf("win")!=-1)||(this.agt.indexOf("16bit")!=-1));
	this.winme=(this.agt.indexOf("win 9x 4.90")!=-1);
	this.xpsp2=(this.agt.indexOf("sv1")!=-1);
	this.mac=(this.agt.indexOf("mac")!=-1);
}
var oBw = new identify_Browser();

function collapse(id) {
	if(oBw.ie5||oBw.ns6){  //Disable function in unsupported browsers
    Istate = document.getElementById(id).style.display;
    	if (Istate=='none') {
      		Istate='block';
    	}
    	else {
      		Istate='none';
    	}
    document.getElementById(id).style.display=Istate;
	}
}

function CheckNumeric(e) 
{
 if(!e)
    e = window.event;
	var key;
	
    if(e.keyCode)
	{
       	//alert(e.keyCode);	
		key = e.keyCode;
	}		
    else
    {			
		//alert(e.charCode);
		key=e.charCode;
	}
	//alert(key);
	if ( key > 47 && key < 58 || (key == 9 || key == 8))     
	{
		//alert (key);
		return
	}
	else if (window.event) //IE       
	{
		window.event.returnValue = null
	}
	else //Firefox       
	{
		e.preventDefault()
	}
}


// Hàm chặn phím enter
// Các dùng: bắt sự kiện onkeypress = "return preventEnter(event)"
function preventEnter(e) 
{   
	var key //= (window.event) ? event.keyCode : e.which;   
	if (window.event)     
	{
		key = event.keyCode   
	}
	else     
	{
		key = e.which   		
	}
	
	if ( key != 13 )     
	{
		return
	}	
	else if (window.event) //IE       
	{
		window.event.returnValue = null
	}
	else //Firefox       
	{
		e.preventDefault()
	}
}

// Trả về giá trị True nếu địa chỉ Email hợp lệ
function isValidEmail(str)
{
    return str.match(/^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$/)
}

// Hàm cắt khoảng trắng 2 ở đầu chuỗi
function sTrim(s)
{	
	while(s.charCodeAt(0) <= 32)
	{
		s = s.substr(1)
	}
	while(s.charCodeAt(s.length - 1) <= 32)
	{
		s = s.substr(0, s.length - 1)
	}
	return s
}	

// Hàm kiểm tra ngày hợp lệ
function isDate(day, month, year)
{
	if ((month < 1) || (month > 12)) return false
	var dt = new Date(year, month-1, day)
	if (dt.getDay() != day) 
		return false
	else
		return true
}

/////////////////////////////////////////////////////////////////////////////////////////////////
// ALL ABOUT AJAX HERE
/////////////////////////////////////////////////////////////////////////////////////////////////
function loadXMLFile(dname) {
    try //Internet Explorer
        {
        xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
    }
    catch (e) {
        try //Firefox, Mozilla, Opera, etc.
            {
            xmlDoc = document.implementation.createDocument("", "", null);
        }
        catch (e) { alert(e.message) }
    }
    try {
        xmlDoc.async = false;
        xmlDoc.load(dname);
        return (xmlDoc);
    }
    catch (e) { alert(e.message) }
    return (null);
} 

// XmlHttp object class
function XmlHttp()
{
    this.array = new Array(1);

    this.setValue = function(v) { this.array[0] = v; }
    this.getValue = function()  { return this.array[0]; }
}

function loadXMLDoc(xmlHttp, url, callback, content)
{
	xmlHttp.setValue(createXMLHttpRequest())
	if (xmlHttp.getValue())
	{		
		xmlHttp.getValue().onreadystatechange = function() {eval(callback)}
		xmlHttp.getValue().open('POST', url, true)
		xmlHttp.getValue().setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
		xmlHttp.getValue().send(content)
		return true
	}
	else
	{
		alert ('Trình duyệt của bạn không hỗ trợ AJAX!\nBạn hãy sử dụng trình duyệt IE 4.0 trở lên hoặc Mozilla FireFox 1.0 trở lên')
		return false
	}
}

function createXMLHttpRequest()
{
	var xmlHttp = null
	try
    {	// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest()
    }
	catch (e)
    {	// Internet Explorer
		try
	  	{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP")
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP")
			}
		  	catch (e)
			{
				return null
			}
		}
    }
	return xmlHttp
}

//v1.7
// Flash Player Version Detection
// Detect Client Browser type
// Copyright 2005-2007 Adobe Systems Incorporated.  All rights reserved.
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

function ControlVersion()
{
	var version;
	var axo;
	var e;

	// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

	try {
		// version will be set for 7.X or greater players
		axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
		version = axo.GetVariable("$version");
	} catch (e) {
	}

	if (!version)
	{
		try {
			// version will be set for 6.X players only
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
			
			// installed player is some revision of 6.0
			// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
			// so we have to be careful. 
			
			// default to the first public version
			version = "WIN 6,0,21,0";

			// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
			axo.AllowScriptAccess = "always";

			// safe to call for 6.0r47 or greater
			version = axo.GetVariable("$version");

		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 4.X or 5.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 3.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = "WIN 3,0,18,0";
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 2.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
			version = "WIN 2,0,0,11";
		} catch (e) {
			version = -1;
		}
	}
	
	return version;
}

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer(){
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	var flashVer = -1;
	
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			var descArray = flashDescription.split(" ");
			var tempArrayMajor = descArray[2].split(".");			
			var versionMajor = tempArrayMajor[0];
			var versionMinor = tempArrayMajor[1];
			var versionRevision = descArray[3];
			if (versionRevision == "") {
				versionRevision = descArray[4];
			}
			if (versionRevision[0] == "d") {
				versionRevision = versionRevision.substring(1);
			} else if (versionRevision[0] == "r") {
				versionRevision = versionRevision.substring(1);
				if (versionRevision.indexOf("d") > 0) {
					versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
				}
			}
			var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	else if ( isIE && isWin && !isOpera ) {
		flashVer = ControlVersion();
	}	
	return flashVer;
}

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
	versionStr = GetSwfVer();
	if (versionStr == -1 ) {
		return false;
	} else if (versionStr != 0) {
		if(isIE && isWin && !isOpera) {
			// Given "WIN 2,0,0,11"
			tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
			tempString        = tempArray[1];			// "2,0,0,11"
			versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
		} else {
			versionArray      = versionStr.split(".");
		}
		var versionMajor      = versionArray[0];
		var versionMinor      = versionArray[1];
		var versionRevision   = versionArray[2];

        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
		if (versionMajor > parseFloat(reqMajorVer)) {
			return true;
		} else if (versionMajor == parseFloat(reqMajorVer)) {
			if (versionMinor > parseFloat(reqMinorVer))
				return true;
			else if (versionMinor == parseFloat(reqMinorVer)) {
				if (versionRevision >= parseFloat(reqRevision))
					return true;
			}
		}
		return false;
	}
}

function AC_AddExtension(src, ext)
{
  if (src.indexOf('?') != -1)
    return src.replace(/\?/, ext+'?'); 
  else
    return src + ext;
}

function AC_Generateobj(objAttrs, params, embedAttrs) 
{ 
  var str = '';
  if (isIE && isWin && !isOpera)
  {
    str += '<object ';
    for (var i in objAttrs)
    {
      str += i + '="' + objAttrs[i] + '" ';
    }
    str += '>';
    for (var i in params)
    {
      str += '<param name="' + i + '" value="' + params[i] + '" /> ';
    }
    str += '</object>';
  }
  else
  {
    str += '<embed ';
    for (var i in embedAttrs)
    {
      str += i + '="' + embedAttrs[i] + '" ';
    }
    str += '> </embed>';
  }

  document.write(str);
}

function AC_FL_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
     , "application/x-shockwave-flash"
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}

function AC_SW_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".dcr", "src", "clsid:166B1BCA-3F9C-11CF-8075-444553540000"
     , null
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}

function AC_GetArgs(args, ext, srcParamName, classid, mimeType){
  var ret = new Object();
  ret.embedAttrs = new Object();
  ret.params = new Object();
  ret.objAttrs = new Object();
  for (var i=0; i < args.length; i=i+2){
    var currArg = args[i].toLowerCase();    

    switch (currArg){	
      case "classid":
        break;
      case "pluginspage":
        ret.embedAttrs[args[i]] = args[i+1];
        break;
      case "src":
      case "movie":	
        args[i+1] = AC_AddExtension(args[i+1], ext);
        ret.embedAttrs["src"] = args[i+1];
        ret.params[srcParamName] = args[i+1];
        break;
      case "onafterupdate":
      case "onbeforeupdate":
      case "onblur":
      case "oncellchange":
      case "onclick":
      case "ondblClick":
      case "ondrag":
      case "ondragend":
      case "ondragenter":
      case "ondragleave":
      case "ondragover":
      case "ondrop":
      case "onfinish":
      case "onfocus":
      case "onhelp":
      case "onmousedown":
      case "onmouseup":
      case "onmouseover":
      case "onmousemove":
      case "onmouseout":
      case "onkeypress":
      case "onkeydown":
      case "onkeyup":
      case "onload":
      case "onlosecapture":
      case "onpropertychange":
      case "onreadystatechange":
      case "onrowsdelete":
      case "onrowenter":
      case "onrowexit":
      case "onrowsinserted":
      case "onstart":
      case "onscroll":
      case "onbeforeeditfocus":
      case "onactivate":
      case "onbeforedeactivate":
      case "ondeactivate":
      case "type":
      case "codebase":
      case "id":
        ret.objAttrs[args[i]] = args[i+1];
        break;
      case "width":
      case "height":
      case "align":
      case "vspace": 
      case "hspace":
      case "class":
      case "title":
      case "accesskey":
      case "name":
      case "tabindex":
        ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
        break;
      default:
        ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
    }
  }
  ret.objAttrs["classid"] = classid;
  if (mimeType) ret.embedAttrs["type"] = mimeType;
  return ret;
}

// ------- Format Number -------
function FormatNumber(num,decimalNum,bolLeadingZero,bolParens,bolCommas)
{ 
        if (isNaN(parseInt(num))) return "NaN";

	var tmpNum = num;
	var iSign = num < 0 ? -1 : 1;		// Get sign of number
	
	// Adjust number so only the specified number of numbers after
	// the decimal point are shown.
	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(Math.abs(tmpNum))
	tmpNum /= Math.pow(10,decimalNum);
	tmpNum *= iSign;					// Readjust for sign
	
	
	// Create a string object to do our formatting on
	var tmpNumStr = new String(tmpNum);

	// See if we need to strip out the leading zero or not.
	if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
		if (num > 0)
			tmpNumStr = tmpNumStr.substring(1,tmpNumStr.length);
		else
			tmpNumStr = "-" + tmpNumStr.substring(2,tmpNumStr.length);
		
	// See if we need to put in the commas
	if (bolCommas && (num >= 1000 || num <= -1000)) {
		var iStart = tmpNumStr.indexOf(".");
		if (iStart < 0)
			iStart = tmpNumStr.length;

		iStart -= 3;
		while (iStart >= 1) {
			tmpNumStr = tmpNumStr.substring(0,iStart) + "," + tmpNumStr.substring(iStart,tmpNumStr.length)
			iStart -= 3;
		}		
	}

	// See if we need to use parenthesis
	if (bolParens && num < 0)
		tmpNumStr = "(" + tmpNumStr.substring(1,tmpNumStr.length) + ")";

	return tmpNumStr;		// Return our formatted string!
}

function ReplaceAll(iStr, v1, v2)
{
	var i = 0, oStr = '', j = v1.length;
	while (i < iStr.length)
	{
		if (iStr.substr(i, j) == v1)

		{
			oStr+=v2;
			i+=j
		}
		else
		{
			oStr+=iStr.charAt(i);
			i++;
		}
	}
	return oStr;
}

// Format number by using 1000 seperator
function FormatN(num) 
{
	var n = ReplaceAll(num,',','');
	if (n == '') return '0';
	var no = FormatNumber(parseInt(n),false,false,false,true);
	return no;
}

//Resize Images
function ResizeImages(img) 
{
    if(img.width > 605) 
    {
        img.height = parseInt(img.height * 605 / img.width);
        img.width = 605; 
    }
}
var tGallery = "Wallpaper";

function selectTab1() {
    document.getElementById("tab1").className = "wallpa1";
    document.getElementById("tab2").className = "screen2";
    document.getElementById("tab3").className = "artwork2";

    document.getElementById("wall").style.display = "block";
    document.getElementById("scr").style.display = "none";
    document.getElementById("art").style.display = "none";

    tGallery = "Wallpaper";
}
function selectTab2() {
    document.getElementById("tab1").className = "wallpa2";
    document.getElementById("tab2").className = "screen1";
    document.getElementById("tab3").className = "artwork2";

    document.getElementById("wall").style.display = "none";
    document.getElementById("scr").style.display = "block";
    document.getElementById("art").style.display = "none";

    tGallery = "Screenshot";
}
function selectTab3() {
    document.getElementById("tab1").className = "wallpa2";
    document.getElementById("tab2").className = "screen2";
    document.getElementById("tab3").className = "artwork1";

    document.getElementById("wall").style.display = "none";
    document.getElementById("scr").style.display = "none";
    document.getElementById("art").style.display = "block";

    tGallery = "ArtWork";
}

function redirectGallery() {
    window.location.href = "/Gallery/" + tGallery + "/Page1/Default.aspx";
}

//Search Advantage
lastSubMenu = "";
function my_getbyid(id) {
    itm = null;
    if (document.getElementById) {
        itm = document.getElementById(id);
    } else if (document.all) {
        itm = document.all[id];
    } else if (document.layers) {
        itm = document.layers[id];
    }
    return itm;
}

// Show/hide toggle

function toggleview(id, closeMenu) {
    if (!id) return;
    // check for main heading
    if (closeMenu == "close") {
        for (i = 1; i <= 6; i++) {
            tempItem = "menu" + i;
            menuNum = "subMenu" + id.substr(4, 1) + "." + i;
            killMenus(tempItem, id);
            killMenus(menuNum, id);
        }
        lastSubMenu = "";
    } else {
        // if im not a heading, kill / show
        if (itm = my_getbyid(id)) {
            // if hidden show else hide 
            if (itm.style.display == "none") {
                my_show_div(itm);
            } else {
                my_hide_div(itm);
            }
            lastItem = itm
        }
        if (closeMenu == "none") {
            if (lastSubMenu !== "" && lastSubMenu !== id) {
                killMenus(lastSubMenu, id);
            }
            lastSubMenu = id;
        }
    }
}

// used to determine what subs subsubs bugger off

function killMenus(objName, id) {
    if (itm = my_getbyid(objName)) {
        if (id == objName) {
            if (itm.style.display == "none") {
                my_show_div(itm);
            } else {
                my_hide_div(itm);
            }
        } else {
            my_hide_div(itm);
        }
    }
}

// Set DIV ID to hide

function my_hide_div(itm) {
    if (!itm) return;
    itm.style.display = "none";
}

// Set DIV ID to show

function my_show_div(itm) {
    if (!itm) return;
    itm.style.display = "";
}
function ResizeImages(img) 

{

    if(img.width > 550) 

    {

        img.height = parseInt(img.height * 550 / img.width);

        img.width = 550; 

    }

}