function isempty(str) 
{
	atmp = str.split(String.fromCharCode(32));
	for (ii=0; ii< atmp.length;ii++ ) 
	{
		if (atmp[ii] != "") 
		return false;
	}	
	return true;
}
//---------------------------------------------
//Submit form by Javascript
//---------------------------------------------
function selfsubmit(straction) {
	window.document.forms[0].target = "_self";
	window.document.forms[0].action = straction;
	window.document.forms[0].submit();
}
//---------------------------------------------
//Check value for CheckBox
//---------------------------------------------
function setchecked(val,ctrChkName)
{
 	document.forms[0].chkall.checked = val
  with (document.forms[0])
   { 
 
	 len = elements.length;
     for(var ii=0; ii<len; ii++) 
	 {
		if (elements[ii].name == ctrChkName) 
		{
			elements[ii].checked = val;
		}
		
	 }

  }
}
//---------------------------------------------
//Check value for CheckBox
//---------------------------------------------
function chkremove(ctrChkName) {
  fg = false;
  with (document.forms[0]) {
	 len = elements.length;
     for(var ii=0; ii<len; ii++) {
		if ((elements[ii].name == ctrChkName) && (elements[ii].checked)) {
			fg = true;
			break;
		}
	}
  }
  return(fg)
}
//--------------------------------------------------
// EmptyTextbox: Kiem tra textbox co rong hay khong
//--------------------------------------------------
function EmptyTextbox(FormName,TextboxName)
{
	x=document + "." + FormName + "." + TextboxName;
	if (x.value.length==0)
	{
		return true;
	}
	else
	{
		return false;
	}
}

//---------------------------------------------------
// FocusField(fieldname)
//---------------------------------------------------
function FocusField(FieldName)
{
	window.document.form[0].FieldName.focus();
	//x.focus();
}

//---------------------------------------------------
// eMailCheck(str): Kiem tra dia chi email
//---------------------------------------------------
function eMailCheck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		   
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		  
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    
		    return false
		 }

 		 return true					
	}

//---------------------------------------------------
// IsNumeric: Kiem tra du lieu co phai So
//---------------------------------------------------
function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }
//----------------------------------------------------
// GetDateTime: Lay ngay gio he thong:
// strCountry: VIE or ENG
//----------------------------------------------------

function GetDateTime(strCountry)
{
	var d=new Date()
	var monthname=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")
	
	if(strCountry.toUpperCase() == "ENG")
		var weekday=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
	if(strCountry.toUpperCase() == "VIE")
		var weekday=new Array("Chủ Nhật","Thứ Hai","Thứ Ba","Thứ Tư","Thứ năm","Thứ Sáu","Thứ Bảy")

	document.write(weekday[d.getDay()] + ", ng&#224;y ")
	document.write(d.getDate() + " th&#225;ng ")
	//document.write(monthname[d.getMonth()] + " ")
	document.write(d.getMonth() + 1 + " n&#259;m ")
	document.write(d.getFullYear())
	
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
/*ham kiem tra url hop le*/
function isValidURL(e)
{	var check = true
    //var re =/^www+\.[a-zA-Z0-9\-]+\.[a-zA-Z0-9-\.]+$/
	var re1 =/^http:+\/+\/+[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]/
	var re2 =/^http:+\/+\/www+\.[a-zA-Z0-9\-]+\.[a-zA-Z0-9\-\.]/
  //  if(re.test(e)==false)
		if(re1.test(e)==false)
			 if(re1.test(e)==false)
			 	check = false
	return check;
}


function DisplaySub(divID)
 {
	if(document.all[divID].style.display!='')
	 { document.all[divID].style.display='';
	 	document.getElementById('mini').innerHTML=" <strong >-</strong>";	
	 }
	  else
	 { document.all[divID].style.display='none';
	 document.getElementById('mini').innerHTML=" <strong >+</strong>";
	 }//alert('Da bat len:'+divID);
 }
function disableSub(catalog,divID)
 {
 	if(document.all[divID].style.display=='')
  	document.all[divID].style.display='none';
	//document.getElementById(layer1).innerHTML="-";	

 }
 function cat_over(divID)
{
	document.getElementById(divID).className ="bt_left_cat_over";
}
function cat_out(divID)
{
	document.getElementById(divID).className ="bt_left_cat";
}
 function subcat_over(divID)
{
	document.getElementById(divID).className ="bt_left_subcat_over";
}
function subcat_out(divID)
{

	document.getElementById(divID).className ="bt_left_subcat";
}

 function menu_top_over(divID)
{
	document.getElementById(divID).className ="menu_top_over";
}
function menu_top_out(divID)
{
	document.getElementById(divID).className ="menu_top";
}
var popUpWin=0;
function OpenWin(URLStr, width, height)
{

  if(popUpWin)

  {

    if(!popUpWin.closed) popUpWin.close();

  }
var left = (screen.width-width)/2;
var top = (screen.height-height)/2;
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');

}

function checkinput()
{	
	str =toRealCharCode("Th&#244;ng b&#225;o c&#243; l&#7895;i!");
	str1 =toRealCharCode("B&#7841;n ph&#7843;i nh&#7853;p T&#234;n &#273;&#259;ng nh&#7853;p"); // "Please type your Username";   
	str2 = toRealCharCode("B&#7841;n ph&#7843;i nh&#7853;p M&#7853;t kh&#7849;u"); // "Please type your Password";  
	
	if(frm.txtUser.value=="")
	{
	alert(str+"\n"+str1);
	frm.txtUser.focus();
	return false;
	}	   
	if(document.frm.txtpass.value=="")
	{
	alert(str+"\n"+str2);
	frm.txtpass.focus();
	return false;
	}
	frm.act.value="11";
	return true;
}



function checkvote(){
	var strID="";
	with (document.frmvote)
	{
		len = elements.length;
		for(var ii=0; ii<len; ii++)
		{	
			if (elements[ii].name == "vote") 
				if (elements[ii].checked)
					strID = elements[ii].value;
		}//end fo
		
	}//end with
	if(strID=="") 
	{
	 alert("Ban phai binh chon moi duoc xem ket qua."); 
	 return false;
	}
 document.frmvote.action='resultvote.php?option='+strID;	
 return true;
}