



function chkFrmContact(obj){



	if(obj.txtname.value=="")



	{



		alert("Ban chua nhap ho ten.");



		obj.txtname.focus();



		return false;



	}



	if(obj.txtmail.value=="")



	{



		alert("Ban chua nhap dia chi email.");



		obj.txtmail.focus();



		return false;



	}



	if (obj.txtmail.value.indexOf('@',0)==-1 || obj.txtmail.value.indexOf('.')==-1)



	{



		alert ("Dia chi Email nhap sai quy cach.");



		obj.txtmail.focus();



		return false;



	}



	if(obj.txtnoidung.value==""){



		alert("Ban chua nhap noi dung gop y - lien he!");



		obj.txtnoidung.focus();



		return false;



	}

	if(obj.txtsdt.value!="" && isNaN(obj.txtsdt.value)){



		alert("So dien thoai phai la so");



		obj.txtsdt.focus();



		return false;



	}

	return true;



}

function chkFrmRegMail(obj){

	if(obj.txtMailName.value=="")

	{

		alert("B¡n ch°a nh­p hÍ tên.");

		obj.txtMailName.focus();

		return false;

	}

	if(obj.txtMailAddress.value=="")

	{

		alert("B¡n ch°a nh­p Ëa chÉ email.");

		obj.txtMailAddress.focus();

		return false;

	}

	if (obj.txtMailAddress.value.indexOf('@',0)==-1 || obj.txtMailAddress.value.indexOf('.')==-1)

	{

		alert ("Ëa chÉ email nh­p sai quy cách.");

		obj.txtMailAddress.focus();

		return false;

	}

	return true;

}

function sconfirm(strMess,strURL){

	var yn;

	yn=window.confirm(strMess);

	if (yn==true){

		document.location.href=strURL;

		}

}

function askconf(strMess){

	var yn;

	yn=window.confirm(strMess);

	if (yn==true){

		return true;

		}

	return false;

}

function openWin(theURL,winName,features) {

  	window.open(theURL,winName,features);

}

function winopen(url){

	window.open(url);

}



function insertStr(strValue,anh){



	window.opener.document.form1[anh].value=strValue;

}



function popupImage(src, note, title, css, border) {

var ppimgNW;

  if (border==null) border = 0;

  if (note==null) note = '';

  if (ppimgNW != null) ppimgNW.close();



  ppimgNW = window.open('','POPUPIMAGE','width=1,height=1');

  var doc = ppimgNW.document;

  doc.write('<html>');

  doc.write('<head>');



  if (title!=null) doc.write('<title>'+ title +'</title>');

  doc.write('<style> body {'+css+'} #ppImgText{'+ css +'} #ppImg{cursor:hand}</style></head>');

  doc.write('<body oncontextmenu="return false" leftmargin="0" topmargin="' + border + '">');

  doc.write('<div align="center">');

  doc.write('<img src="' + src + '" id="ppImg" onclick="self.close();" title="Close">');

  doc.write('</div>');

  doc.write('<div style="height:1; width:'+ border +'; font-size:4pt">');

  doc.write('</div>');

  doc.write('<div id="ppImgText" align="center">');

  doc.write('<Font face=Tahoma size=2>'+note+'</Font>');

  doc.write('</div>');

  doc.write('</body>');

  doc.write('</html>');



  doc.write('<' + 'script>');

  doc.write('var resized = false;');

  doc.write('function doResize() {');

  doc.write('  var imgW = ppImg.width, imgH = ppImg.height;');     

  if (note=='' || note==null) {addH=35} else {addH=60};

  doc.write('  window.resizeTo(imgW + 8 +' + border*2 +', imgH + ppImgText.offsetHeight + '+addH+' + '+ border*2 +');');

  doc.write('  setTimeout("doResize()",1000);');



  doc.write('}');

  doc.write('doResize(); ');

  doc.write('</' + 'script>');

}