var fBrw=(navigator.userAgent.indexOf('MSIE')!= -1 && navigator.userAgent.indexOf('Windows')!= -1);

if (typeof(PageHost) == 'undefined') var PageHost = '';


function setCookie(Name, Path, Expires, Value)
{
	var cstr = Name.concat('=').concat(Value);	
	if(Path=='')
		Path = '/';
	cstr=cstr.concat(';path=').concat(Path);
	if(Expires=='')
		Expires=(new Date(2020,11,14)).toGMTString();
	document.cookie=cstr.concat(';expires=').concat(Expires);
}

function getCookie(Name, Default)
{
	var cookie = document.cookie;
	var ir = 0, ie = 0, sf = '', i = 0, j = 0;
	Name = Name.toLowerCase();
	if (typeof(Default) == 'undefined')
		Default = '';
	if (cookie.length == 0)
		return Default;
	if ((ir = Name.indexOf('.')) == -1)
	{
		if (cookie.substr(0, Name.length + 1).toLowerCase() == Name.concat('='))
		{
			if ((ie = cookie.indexOf(';')) != -1)
			{
				cookie = cookie.substr(0, ie);
			}
		}
		else
		{
			if ((ie = cookie.toLowerCase().indexOf('; '.concat(Name).concat('='))) == -1)
				return Default;
			cookie = cookie.substr(ie + 2);
			if ((ie = cookie.indexOf(';')) != -1)
			{
				cookie = cookie.substr(0, ie);
			}
		}
		sf = ';';
	}
	else
	{
		if ((i=cookie.toLowerCase().indexOf(Name.concat('='))) != -1)
		{
			if ((j = cookie.indexOf(';', i)) > i + Name.length + 1)
			{
				return ReplaceAll(unescape(cookie.substr(i + Name.length + 1, j - i - Name.length - 1)), '+', ' ');
			}
			else
			{
				j = cookie.length;
				return ReplaceAll(unescape(cookie.substr(i + Name.length + 1, j - i - Name.length - 1)), '+', ' ');
			}
		}

		var Root = Name.substr(0, ir);
		Name = Name.substr(ir + 1);
		if (cookie.substr(0, Root.length + 1).toLowerCase() == Root.concat('='))
		{
			if ((ie = cookie.indexOf(';')) != -1)
			{
				cookie = cookie.substr(0, ie);
			}
		}
		else
		{
			if ((ie = cookie.toLowerCase().indexOf('; '.concat(Root).concat('='))) == -1)
				return Default;

			cookie = cookie.substr(ie + 2);

			if ((ie = cookie.indexOf(';')) != -1)
			{
				cookie = cookie.substr(0, ie);
			}
		}
		cookie = cookie.substr(Root.length + 1);
		sf = '&';
	}

	if (cookie.substr(0, Name.length + 1).toLowerCase() == Name.concat('='))
	{
		ir = Name.length + 1;
	}
	else
	{
		if ((ir = cookie.toLowerCase().indexOf('&'.concat(Name).concat('='))) == -1)
			return Default;
		ir+=Name.length + 2;
	}
	if ((ie=cookie.indexOf(sf, ir)) == -1)
	{
		return ReplaceAll(unescape(cookie.substr(ir)), '+', ' ');
	}
	else
	{
		return ReplaceAll(unescape(cookie.substring(ir, ie)), '+', ' ');
	}
}

function CharReplace(iStr)
{
	var	r1=/%26/g;
	var	r2=/%20/g;
	var	r3=/%22/g;
	iStr	=iStr.replace(r1, '&');
	iStr	=iStr.replace(r2, ' ');
	iStr	=iStr.replace(r3, '"');
	return iStr;
}


function Trim(iStr)
{
	while (iStr.charCodeAt(0) <= 32)
	{
		iStr=iStr.substr(1);
	}

	while (iStr.charCodeAt(iStr.length - 1) <= 32)
	{
		iStr=iStr.substr(0, iStr.length - 1);
	}

	return iStr;
}

function Left(str, n)
{
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function Right(str, n)
{
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function numberFormat(num,decimalNum,bolLeadingZero,bolParens,bolCommas){ 
	if (isNaN(parseInt(num))) return "0";

	var tmpNum = num;
	var iSign = num < 0 ? -1 : 1; 

	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(Math.abs(tmpNum))
	tmpNum /= Math.pow(10,decimalNum);
	tmpNum *= iSign;

	var tmpNumStr = new String(tmpNum);

	if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
		if (num > 0)
			tmpNumStr = tmpNumStr.substring(1,tmpNumStr.length);
		else
			tmpNumStr = "-" + tmpNumStr.substring(2,tmpNumStr.length);
				
	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;
		}                       
	}
	if (bolParens && num < 0)
				tmpNumStr = "(" + tmpNumStr.substring(1,tmpNumStr.length) + ")";
	return tmpNumStr;
}



function SetParameter(pFile, pName, pVal)
{
	if ((cPost=pFile.indexOf('&'.concat(pName).concat('=')))==-1)
		cPost=pFile.indexOf('?'.concat(pName).concat('='));

	if (cPost >= 0)
	{
		if ((pPost=pFile.indexOf('&', cPost + 1))==-1)
		{
			pFile=pFile.substring(0, cPost + pName.length + 2).concat(pVal);
		}
		else
		{
			pFile=pFile.substring(0, cPost + pName.length + 2).concat(pVal).concat(pFile.substr(pPost));
		}
	}
	else
	{
		if (pFile.indexOf('?')==-1)
		{
			pFile=pFile.concat('?').concat(pName).concat('=').concat(pVal);
		}
		else
		{
			pFile=pFile.concat('&').concat(pName).concat('=').concat(pVal);
		}
	}

	return pFile;
}



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;
}

function ShowExpand(sobj1, sobj2)
{
	sobj1.style.display = 'none';
	sobj2.style.display = '';
}


function openLink(vLink, vName, vHeight, vWidth)
{	
	var sLink = (typeof(vLink.href) == 'undefined') ? vLink : vLink.href;

	if (sLink == '')
	{
		return false;
	}

	winDef = 'status=no,resizable=no,scrollbars=no,toolbar=no,location=no,fullscreen=no,titlebar=no,height='.concat(vHeight).concat(',').concat('width=').concat(vWidth).concat(',');
	winDef = winDef.concat('top=').concat((screen.height - vHeight)/2).concat(',');
	winDef = winDef.concat('left=').concat((screen.width - vWidth)/2);
	window.open(vLink, vName, winDef);
	
	if (typeof(vLink.href) != 'undefined')
	{
		return false;
	}
}

function openImage(vLink, vHeight, vWidth)
{	
	var sLink = (typeof(vLink.href) == 'undefined') ? vLink : vLink.href;

	if (sLink == '')
	{
		return false;
	}

	winDef = 'status=no,resizable=no,scrollbars=no,toolbar=no,location=no,fullscreen=no,titlebar=yes,height='.concat(vHeight).concat(',').concat('width=').concat(vWidth).concat(',');
	winDef = winDef.concat('top=').concat((screen.height - vHeight)/2).concat(',');
	winDef = winDef.concat('left=').concat((screen.width - vWidth)/2);
	newwin = open('', '_blank', winDef);

	newwin.document.writeln('<body topmargin="0" leftmargin="0" marginheight="0" marginwidth="0">');
	newwin.document.writeln('<a href="" onClick="window.close(); return false;"><img src="', sLink, '" alt="', (fBrw) ? '&#272;&#243;ng l&#7841;i' : 'Dong lai', '" border=0></a>');
	newwin.document.writeln('</body>');

	if (typeof(vLink.href) != 'undefined')
	{
		return false;
	}
}

function PageSet(vPage)
{
	location.replace(SetParameter(location.href, 'p', vPage));
}



function SetSelectValue(Field, iStr)
{
	if (iStr=='')
	{
		iStr=' ';
	}

	for (i=0; i < Field.options.length; i++)
	{
		if (Field.options[i].value==iStr)
		{
			Field.selectedIndex=i;
			return;
		}
	}
}


function UrlDecode(utftext) {
    var string = "";
    var i = 0;
    var c = c1 = c2 = 0;

    while ( i < utftext.length ) {

        c = utftext.charCodeAt(i);

        if (c < 128) {
            string += String.fromCharCode(c);
            i++;
        }
        else if((c > 191) && (c < 224)) {
            c2 = utftext.charCodeAt(i+1);
            string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
            i += 2;
        }
        else {
            c2 = utftext.charCodeAt(i+1);
            c3 = utftext.charCodeAt(i+2);
            string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
            i += 3;
        }

    }

    return string;
}


function openMeExt(vLink, vStatus, vResizeable, vScrollbars, vToolbar, vLocation, vFullscreen, vTitlebar, vCentered, vHeight, vWidth, vTop, vLeft, vID, vCounter)
{
	var sLink = (typeof(vLink.href) == 'undefined') ? vLink : vLink.href;

	winDef = '';
	winDef = winDef.concat('status=').concat((vStatus) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('resizable=').concat((vResizeable) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('scrollbars=').concat((vScrollbars) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('toolbar=').concat((vToolbar) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('location=').concat((vLocation) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('fullscreen=').concat((vFullscreen) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('titlebar=').concat((vTitlebar) ? 'yes' : 'no').concat(',');
	winDef = winDef.concat('height=').concat(vHeight-140).concat(',');
	winDef = winDef.concat('width=').concat(vWidth).concat(',');

	if (vCentered){
		winDef = winDef.concat('top=').concat((screen.height - vHeight)/2).concat(',');
		winDef = winDef.concat('left=').concat((screen.width - vWidth)/2);
	}
	else{
		winDef = winDef.concat('top=').concat(vTop).concat(',');
		winDef = winDef.concat('left=').concat(vLeft);
	}

	if (typeof(vCounter) == 'undefined'){
		vCounter = 0;
	}

	if (typeof(vID) == 'undefined')	{
		vID = 0;
	}
	
	if (vCounter){
		sLink = buildLink(vID,sLink);
	}

	open(sLink, '_blank', winDef);

	if (typeof(vLink.href) != 'undefined')	{
		return false;
	}
}

function gmobj(o){
	if(document.getElementById){ m=document.getElementById(o); }
	else if(document.all){ m=document.all[o]; }
	else if(document.layers){ m=document[o]; }
	return m;
}