function chkemail(z) //check email格式--------------------------------------------------
{
    for ( i=0; i<= z.value.length - 1 ;i++ )
    {
    x = z.value.charAt(i)
    y = escape( x)                //利用escape()將x編碼成%aa
	if ( (y != x) && (y !='%40')) //escape('@') = '%40'
		{
			alert('電子信箱錯誤')
			z.focus()
			return false
			i = z.value.length
		}
	}

	if ( z.value.indexOf('@') == -1 )
		{
			alert('電子信箱錯誤')
			z.focus()
			return false
		}
	if ( z.value.indexOf('.') == -1 )
		{
			alert('電子信箱錯誤')
			z.focus()
			return false
		}
		return true
}	//end of chkemail(z)-------------------------------------------------------------------



function isblank(s) //check是否為空白------------------------------------------------------
{
	for (var i =0; i <s.length; i++) {
		var c = s.charAt(i);
		if ((c!=' ') && (c!='\r') && (c!='\n') && (c!='\t')) {//find any char not whitespace, then is not BLANK
			return false;
		}
	}
	return true;
}	//end of isblank(s)-------------------------------------------------------------------



function chkf(E,Str)  //check表單的欄位是否空白-----------------------------------------
{

if (isblank(E.value))
 {
   alert('"'+ Str + '" 未填!');
   E.focus();
   return false
 }
 else
 {
   return true
 }
}//end of chkf(E,Str)-------------------------------------------------------------------



function chktel(fobj,msg,len){  //check telephone---------------------------------------
		chkstring='0123456789-#*轉exit()'  //只能出現這些字元
		telstring = fobj.value;
	if (telstring.length < len){
				alert(msg)
				return false;
			}


		for (var i=0;i<telstring.length;i++){
			if (chkstring.indexOf(telstring.charAt(i)) == -1){  //indexOf()在字串中搜尋子字串
				alert(msg);                                     //如果找不到則會傳回-1
				fobj.focus();
				return false;
			}
		}
		return true;
}//end of chktel(fobj,msg,len)----------------------------------------------------------



function chknum(fobj,msg){  //check是否為數字---------------------------------------------
		chkstring='0123456789'
		telstring = fobj.value;

		for (var i=0;i<telstring.length;i++){
			if (chkstring.indexOf(telstring.charAt(i)) == -1){
				alert(msg);
				fobj.focus();
				return false;
			}
		}
		return true;
}//end of chknum(fobj,msg)----------------------------------------------------------------



function chkradio(fobj,msg){  //check radio是否有選取-------------------------------------
	//alert(fobj.length)
	for (var i=0;i<fobj.length;i++){
		if (fobj[i].checked){
			return true;
		}
	}
	alert(msg);
	//fobj[0].focus();
	return false;
}//end of chkradio(fobj,msg)----------------------------------------------------------------



 function chkselect(fobj,msg){  //check select是否有選取-------------------------------------
 	//alert(fobj.options[fobj.selectedIndex].value)
	if (fobj.options[fobj.selectedIndex].value == ''){
		alert(msg);
		fobj.focus();
		return false;
	}
	return true;
 }//end of chkselect(fobj,msg)----------------------------------------------------------------



function OpWin(argUrl,argW,argH,argName){
	strFeature = 'width='+ argW +',height=' + argH + ',scrollbars=yes,resizable=yes,menubar=no,toolbar=no'
	window.open(argUrl,argName,strFeature);

}

function ConfirmDel(argurl,msg){
	if(confirm(msg)){
		window.open(argurl ,'del','width=1,height=1,menubar=no')
	}
}

function DouOnly(){

	if ((event.keyCode >= 48) && (event.keyCode <= 57)){
		return true;
	}

	if ((event.keyCode == 46)){
		return true;
	}

	return false;
}


function NumOnly(){  //只能輸入數字---------------------------------------------------

	if ((event.keyCode >= 48) && (event.keyCode <= 57)){
		return true;
	}
	return false;
}//end of NumOnly()-------------------------------------------------------------------



/*********************************************
 　函式名稱：CheckMaxLength
   輸入參數：String-String
             Length-int
   函式描述：:檢查字串長度是否超過限制(Length)
   傳回值 ：超過，則傳回true，否則傳回false
   函式控管：
**********************************************/
function CheckMaxLength(String,Length)
{
	if (Length == null || Length == "" || String == null || String == "") return false;
		var actualLen = 0;
	for (var i=0; i<String.length; i++)
		if (String.charCodeAt(i) < 127)
			actualLen++;
		else
			actualLen+=2;

	if (actualLen <= Length)
		return false;
	else
		return true;
}


/**********************************************************
 　函式名稱：CheckID
   輸入參數：IDString-String
   函式描述：檢查帳號是否正確
         1.檢查是否為10碼
         2.若第一碼為P，則代表後9碼是護照號碼，可不用檢查
         3.否則要檢查輸入的身份證字號是否正確
   傳回值 ：超過，則傳回true，否則傳回false
   函式控管：
 **********************************************************/

function CheckID(IDString)
{
 var ErrString = "" ;
 var ID1 = IDString.toUpperCase();
 if (IDString.length != 0 ) {IDString =IDString.toUpperCase()}
 if (ID1.length != 10) {alert("身分證字號字數不對 !") ;return false; };
 var IDdigit = new Array(10);
 for (var i=0; i<10; i++) { IDdigit[i] = ID1.charAt(i); }
 var CharEng = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 IDdigit[0]   = CharEng.indexOf(IDdigit[0]);
 if (IDdigit[0] == -1) {alert("身分證字號第一位為錯誤英文字母 !"); return false;}
 if (IDdigit[1] !=1 && IDdigit[1] !=2) {alert("身分證字號無法辨識性別 !"); return false;}
 var Array1  = new Array(26);
 Array1[0]   = 1 ; Array1[1]  = 10; Array1[2]  = 19;
 Array1[3]   = 28; Array1[4]  = 37; Array1[5]  = 46;
 Array1[6]   = 55; Array1[7]  = 64; Array1[8]  = 39;
 Array1[9]   = 73; Array1[10] = 82; Array1[11] = 2 ;
 Array1[12]  = 11; Array1[13] = 20; Array1[14] = 48;
 Array1[15]  = 29; Array1[16] = 38; Array1[17] = 47;
 Array1[18]  = 56; Array1[19] = 65; Array1[20] = 74;
 Array1[21]  = 83; Array1[22] = 21; Array1[23] = 3 ;
 Array1[24]  = 12; Array1[25] = 30;
 var result = Array1[IDdigit[0]];
 for (var i=1; i<10; i++) {
    var Number = "0123456789";
    IDdigit[i] = Number.indexOf(IDdigit[i]);
    if (IDdigit[i] == -1){
      alert("身分證字號錯誤 !");
      return false;
      }
    else{
      result += IDdigit[i] * (9-i);
       }
 }
 result += 1 * IDdigit[9];
 if (result % 10 != 0){
    alert("身分證字號錯誤 !");
    return false; }
  else {
    return true;
 }
}

/*********************************************
 　函式名稱：ChkMobile
   輸入參數：inText-String
   函式描述：:檢查字串長度是否超過限制(Length)
   傳回值 ：超過，則傳回true，否則傳回false
   函式控管：
**********************************************/

function ChkMobile(inText){

	var tmp="0123456789";
	var ans=true;
	var tmpChar;
	if(inText.value.length != 10 || inText.value.substring(0,2) != "09"){
		return false;
	}else{
		for(var i=0;i<inText.value.length;i++){
			tmpChar=inText.value.substring(i,i+1)
			if(tmp.indexOf(tmpChar)<0){
				return false;
				break;
			}
		}
	}
	return true;
}

// 檢查 email
// inText : 傳入的欄位
function EmailChk (inText) {
	var emailStr = inText.value;
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|idv)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);

	if (matchArray==null) {
		// alert("Email address seems incorrect (check @ and .'sn)");
		//window.alert(" 您的電子郵件格式錯誤 ");
		//inText.select();
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			// alert("Ths username contains invalid characters.");
			//window.alert(" 您的電子郵件錯誤（含有不正確字元） ");
			//inText.select();
			return false;
		}
	}
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i) == 42) {
			// alert("Ths username contains invalid characters:'*'.");
			//window.alert(" 您的電子郵件錯誤（含有不正確字元） ");
			//inText.select();
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			// alert("Ths domain name contains invalid characters.");
			//window.alert(" 您的電子郵件錯誤（含有不正確字元） ");
			//inText.select();
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)==42) {
			// alert("Ths domain name contains invalid characters:'*'.");
			//window.alert(" 您的電子郵件錯誤（含有不正確字元） ");
			//inText.select();
			return false;
		}
	}

	if (user.match(userPat)==null) {
		// alert("The username doesn't seem to be valid.");
		//window.alert(" 您的電子郵件錯誤 ");
		//inText.select();
		return false;
	}

	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				// alert("Destination IP address is invalid!");
				//window.alert(" 您的電子郵件錯誤 ");
				//inText.select();
				return false;
			}
		}
		 return true;
	}

	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			// alert("The domain name does not seem to be valid.");
			//window.alert(" 您的電子郵件錯誤 ");
			//inText.select();
			return false;
		}
	}

	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {
		// alert("The address must end in a well-known domain or two letter " + "country.");
		//window.alert(" 您的電子郵件錯誤 ");
		//inText.select();
		return false;
	}

	if (len<2) {
		// alert("This address is missing a hostname!");
		//window.alert(" 您的電子郵件錯誤 ");
		//inText.select();
		return false;
	}
	return true;
}
function ChkTime(argYear,argMonth,argDay){
		intYear	 = parseInt(argYear,10);
		intMonth = parseInt(argMonth,10);
		intDay	 = parseInt(argDay,10);

		if (intYear < 1911 || intYear >2004){
		    alert(" 出生年錯誤");
			return false;
		}

		mydate = new Date(intYear,intMonth-1,intDay)
		if (mydate.getFullYear() != intYear){
	        alert(" 生日日期錯誤");
			return false;
		}

		if (mydate.getMonth() != intMonth-1){
			alert(" 生日日期錯誤");
			return false;
		}

		if (mydate.getDate() != intDay){
			alert(" 生日日期錯誤");
			return false;
		}

		return true;
	}



function chkallEmail(fobj,amount){  //check email的表單填寫
	var mcount;
	mcount = 0;
	chk=function (s) {
			for (var i =0; i <s.value.length; i++) {
				var c = s.value.charAt(i);
				if ((c!=' ') && (c!='\r') && (c!='\n') && (c!='\t')) {
					return true;
				}
			}
			return false;
		}

	chkemail=function(z){
				for (var i=0; i<= z.value.length - 1 ;i++ ){
					x = z.value.charAt(i)
					y = escape(x)
					if ( y != x && y !='%40'){
						return false;
						i = z.value.length
					}
				}

				if ( z.value.indexOf('@') == -1 ){
					return false;
				}
				if ( z.value.indexOf('.') == -1 ){
					return false;
				}
				return true;

			}


	for (var i=1 ; i <= amount;i++){
		var tempNameObj,tempEmailObj;
		tempNameObj = eval("fobj.name_" + i)
		tempEmailObj = eval("fobj.email_" + i)

		if (chk(tempNameObj) && chkemail(tempEmailObj)){
			mcount++
		}
		else{
			 if (chk(tempNameObj)){
				 alert('請填寫好友的Email');
				 tempEmailObj.focus();
				 return false;
			 }

			 if (chkemail(tempEmailObj)){
				 alert('請填寫好友姓名');
				 tempNameObj.focus();
				 return false;
			 }

		}
	}
	if (mcount != 0){
		return true;
	}
	else{
			alert('請填寫寄送資料!');
			fobj.name_1.focus();
			return false;
	}
}

function logout(){
	//document.write('<iframe name="if1" src="/logout.asp" id="if1" width="0" height="0"></iframe>');
	location.href='/logout.asp';
}