//ham kiem tra dinh dang email


//check versiong FLash
function MM_CheckFlashVersion(reqVerStr,msg){
  with(navigator){
    var isIE  = (appVersion.indexOf("MSIE") != -1 && userAgent.indexOf("Opera") == -1);
    var isWin = (appVersion.toLowerCase().indexOf("win") != -1);
    if (!isIE || !isWin){  
      var flashVer = -1;
      if (plugins && plugins.length > 0){
        var desc = plugins["Shockwave Flash"] ? plugins["Shockwave Flash"].description : "";
        desc = plugins["Shockwave Flash 2.0"] ? plugins["Shockwave Flash 2.0"].description : desc;
        if (desc == "") flashVer = -1;
        else{
          var descArr = desc.split(" ");
          var tempArrMajor = descArr[2].split(".");
          var verMajor = tempArrMajor[0];
          var tempArrMinor = (descArr[3] != "") ? descArr[3].split("r") : descArr[4].split("r");
          var verMinor = (tempArrMinor[1] > 0) ? tempArrMinor[1] : 0;
          flashVer =  parseFloat(verMajor + "." + verMinor);
        }
      }
      // WebTV has Flash Player 4 or lower -- too low for video
      else if (userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 4.0;

      var verArr = reqVerStr.split(",");
      var reqVer = parseFloat(verArr[0] + "." + verArr[2]);
  
      if (flashVer < reqVer){
        if (confirm(msg))
          window.location = "http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash";
      }
    }
  } 
}


function isEmail(s)
{   
  if (s=="") return false;
  if(s.indexOf(" ")>0) return false;
  if(s.indexOf("@")==-1) return false;
  var i = 1;
  var sLength = s.length;
  if (s.indexOf(".")==-1) return false;
  if (s.indexOf("..")!=-1) return false;
  if (s.indexOf("@")!=s.lastIndexOf("@")) return false;
  if (s.lastIndexOf(".")==s.length-1) return false;
	
   return true;
}
//ham kiem tra nhap thong tin cua khach hang
function chkInContact()
{			
		if(document.formContact.Name.value=="")
		{	alert("Ban chua nhap TEN LIEN HE !");
			document.formContact.Name.focus();
	        return false;
		}
		
		if(document.formContact.Address.value=="")
		{	alert("Ban chua nhap DIA CHI !");
			document.formContact.Address.focus();
	        return false;
		}
		
		/*if(document.formContact.telephone.value=="")
		{	alert("Ban chua nhap DIEN THOAI !");
			document.formContact.telephone.focus();
	        return false;
		}*/
		
		if(document.formContact.Email.value=="")
		{	alert("Ban chua nhap E-mail !");
			document.formContact.Email.focus();
	        return false;
		}
		if (!isEmail(document.formContact.Email.value))
		{
			alert("E-mail khong dung !");
			document.formContact.Email.focus();
			return false;
		}
		
		if(document.formContact.Subject.value=="")
		{	alert("Ban chua nhap CHU DE !");
			document.formContact.Subject.focus();
	        return false;
		}			
		
		if(document.formContact.Content.value=="")
		{	alert("Ban chua nhap NOI DUNG GUI !");
			document.formContact.Content.focus();
	        return false;
		}
		return true;
}


function open_window(Url) {
	var url = Url[Url.selectedIndex].value;
	if (url != '') {
		window.open(url);
	}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}