function movePage(page){
	if(!isNaN(page)){
		document.frmMovePage.Page.value = page;
		document.frmMovePage.submit();
	}
}
function isEmail(str) {
   // EMAIL address validity checker
  // are regular expressions supported?
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported) 
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
  return (!r1.test(str) && r2.test(str));
}
function isValid(frmId, msg, flag)
{
	if (document.frm[frmId].value == '')
	{
		alert(msg);
		document.frm[frmId].focus();
		return false;
	}
		return true;
}

function modalDialog(URL,title,width,height){
	var top=(screen.height - height)/2;
	var left=(screen.width - width)/2;
	
	window.showModalDialog(URL, title, "dialogHeight: " + height + "px; dialogWidth: " + width + "px; dialogTop: " + top + "px; dialogLeft: " + left + "px; edge: Raised; center: Yes; help: No; resizable: No; status: No; scrollbar: No");
//	window.open(URL,"","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=no, width=" + width + ", height=" + height)
//	if(strAlert != null && strAlert != ""){
//		alert(strAlert);
//	}
}
function checkSearchDate(frm){
	var day = frm.SDay.value;
	var month = frm.SMonth.value;
	var year = frm.SYear.value;
	
	if(day == ""&&month == ""&&year == ""){
		alert("Bạn phải nhập ngày hoặc tháng hoặc năm");
		return false;
	}
	return true;
}
function openwindow(url,width,height)
{
	var top=(screen.height - height)/2;
	var left=(screen.width - width)/2;
	
	window.open(url,"","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=no,left=" + left + ", top=" + top + ", width=" + width + ", height=" + height)
}

function CheckEmailAddress(Email)
{
	Email = Email.replace(" ","");

	while (Email != '')
	{
		c = Email.charAt(0);	
		if (c==' ' || c=='<' || c==39 || c==':' || c=='.')
		{
			Email = Email.substr(1);
		}
		else
		{
			break;
		}
	}

	i = Email.indexOf('>');
	if (i==-1)
	{
		while (Email != '')
		{
			c = Email.charAt(Email.length - 1);
			if (c==' ' || c==39 || c=='.')
			{
				Email = Email.substr(0, Email.length - 1);
			}
			else
			{
				break;
			}
		}
	}
	else
	{
		Email = Email.substr(0, i);
	}

	if (Email.length > 96)
		return '';

	i = Email.lastIndexOf('@');
	j = Email.lastIndexOf('.');
	if (i < j)
		i = j;

	switch (Email.length - i - 1)
	{
	case 2:
		break;
	case 3:
		switch (Email.substr(i))
		{
		case '.com':
		case '.net':
		case '.org':
		case '.edu':
		case '.mil':
		case '.gov':
		case '.biz':
		case '.pro':
		case '.int':
			break;
		default:
			return '';
		}
		break;
	default:
		switch (Email.substr(i))
		{
		case '.name':
		case '.info':
			break;
		default:
			return '';
		}
		break;
	}

	Email = Email.toLowerCase();

	if (Email == '')
		return '';

	if (Email.indexOf(' ') != -1)
		return '';

	if (Email.indexOf('..') != -1)
		return '';

	if (Email.indexOf('.@') != -1)
		return '';

	if (Email.indexOf('@.') != -1)
		return '';

	if (Email.indexOf(':') != -1)
		return '';

	for (i=0; i < Email.length; i++)
	{
		c = Email.charAt(i);

		if (c >= '0' && c <= '9')
			continue;
		
		if (c >= 'a' && c <= 'z')
			continue;
		
		if ('`~!#$%^&*-_+=?/\\|@.'.indexOf(c) != -1)
			continue;

		return '';
	}

	if ((i=Email.indexOf('@'))==-1)
		return '';

	if (Email.substr(i + 1).indexOf('@')!=-1)
		return '';

	if (Email.charAt(0)=='.' || Email.charAt(Email.length - 1)=='.')
		return '';

	return Email;
}