/**
 * chk_reg.js
 * eLookFar 
 * 宜發資訊科技工作坊 
 * Copyright (c) 2002 eLookFar Object-Oriented Systems Laboratory, Inc.
 *
 */


function popupWindow(url, wd, ht) {
  window.open(url,'popupWindow','toolbar=no,menubar=no,status=no,scrollbars=yes,top=40,left=360,width='+wd+',height='+ht)
}

/****
function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,menubar=no,status=no,scrollbars=yes,top=40,left=360,width=420,height=400')
}
****/

// length 4-20, letters, digits, & "_"
function chkAcc(s)
{
   return getErrStr("帳號", s);
}




function chkLoginPasswd(pw)
{
    return getErrStr("帳號密碼", pw);
}





function chkPasswd(p1, p2)
{

    if( p1 != p2 )
        return "- "+"帳號密碼和帳號密碼確認必須相同。\n";

    return getErrStr("帳號密碼", p1);
    
}



function getErrStr(fname, str)
{
   
    if ( str.length < 4 || str.length > 36 )
        return "- "+fname+"長度必須介於 4 至 36 個字元。例如redshoes, peace007 \n";    

    for( i = 0 ; i < str.length ; ++i ) 
        if ( !((str.charAt(i) >= '-' && str.charAt(i) <= '9' ) ||
               (str.charAt(i)>='@' && str.charAt(i)<='Z') ||
//        if ( !((str.charAt(i) >= '0' && str.charAt(i) <= '9' ) ||
//               (str.charAt(i)>='A' && str.charAt(i)<='Z') ||
               (str.charAt(i)=='_') || 
               (str.charAt(i)>='a' && str.charAt(i)<='z')) )
        
            return "- "+fname+"必須是由英文字母、數字\"_\"符號組成。例如 redapple, luck123 \n";
  

    return "";
   
}



function chkLeng(data, len1, len2, errMsg)
{
      if (data.length<len1 || data.length>len2)
         return errMsg;
         
      return ""
}




function chkID(id)
{
   
   if (id.length != 10)
     return "- "+"身分證字號長度不符。\n";
   
   var c1 = id.charAt(0);
   var c2 = id.charAt(1);
   
   if(c1<'A' || c1>'Z')
      return "- "+"身分證字號第一碼必須是大寫的英文字母。\n";
   
   if(c2!='1' && c2!='2')
      return "- "+"身分證字號第二碼不符。\n";
   
   var letter = new Array("A","B","C","D","E","F","G","H","J","K","L","M","N","P","Q","R","S","T","U","V","X","Y","W","Z","I","O");
   
   var x;
   for (i=0; i<26; ++i)
      if (id.charAt(0)==letter[i]) {
         x = 10+i;
         break;
      }
   
   var x1 = Math.floor(x/10);
   var x2 = x%10;   
   
   var sumID = x1 + 9*x2;
   
   for (i=1, j=8; i<9; ++i, --j)
      sumID += j*parseInt(id.charAt(i));
      
   sumID += parseInt(id.charAt(i));
   
   if (sumID%10!=0)
      return "- "+"身分證字號碼不符。請再確認，謝謝。\n";
   
   return "";
}




function chkEmail(email)
{
      
   if (email.length<6)
      return "- "+"電子郵件信箱不符。請再確認，謝謝。\n";

   if (email.indexOf( "@" )<1 || email.indexOf( "." )<1)
      return "- "+"電子郵件信箱格式不符。請再確認，謝謝。\n";
   
   for( i = 0 ; i < email.length ; ++i )
      if ( !( (email.charAt(i)>='-' && email.charAt(i)<='9') ||
              (email.charAt(i)>='A' && email.charAt(i)<='Z') ||
               email.charAt(i)=='_' || email.charAt(i)=='@' || 
              (email.charAt(i)>='a' && email.charAt(i)<='z') ) )
            return "- "+"電子郵件信箱必須是由數字、英文字母、或\"@\"、\"-\"、\"_\"等符號組成。\n";
            
   return "";
}





function chkTel(tel)
{
    if( tel.length < 6 )
        return "- "+"聯絡電話號碼不能留白，或是太短。\n";
    for( i = 0 ; i < tel.length ; ++i )
        if( !((tel.charAt(i) >= '0' && tel.charAt(i) <= '9' ) || tel.charAt(i)=='-' || tel.charAt(i)==' ' || tel.charAt(i)=='x' || tel.charAt(i)=='X' ) )
            return "- "+"聯絡電話號碼必須是由數字\" \"、\"-\"或\"x\"組成。\n";
            
    return "";
}




function chkPrc(prc)
{
   if (prc.length > 0)
      for( i = 0 ; i < prc.length ; ++i )
        if( !(prc.charAt(i) >= '0' && prc.charAt(i) <= '9' ) )
            return "- "+"金額必須是由數字組成。\n";
      
   return "";
     
}





function chkPQ(num1, num2)
{
   
   if ( isNaN(parseInt(num1)) || isNaN(parseInt(num2)) )
      return "- "+"單價和數量，必須是由數字組成。\n";

   var n1 = parseInt(num1);
   var n2 = parseInt(num2);
   
   if (n1<n2)
      return "- "+"單價或數量，必須大於或等於 "+num2;
   else   
      return "";
     
}






function chkPollPQ(p, q, p6) {
   
   if ( isNaN(parseInt(p)) || isNaN(parseInt(q)) )
      return "- "+"單價和數量，必須是由數字組成。\n";

   var prc = parseInt(p);
   var qty = parseInt(q);

   if (qty<1 || qty>9000)
      return "- 數量輸入異常，請修正。";

   if ( isNaN(parseInt(p6)) )
      return "";   
   
   var prc6 = parseInt(p6);
      
   if (prc<prc6)
      return "- 標購單價必須大於或等於表中所列最低價... $"+p6;

   return "";
     
}