<!--
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  var valid_num;
  for (i=0; i<(args.length-2); i+=3) 
  { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' 必須填入.\n'; }
  } 
  
  if(document.err)  errors += document.err;  

  if (errors || document.err){
  	errors = errors.replace("tracking", "維修編號");
  	alert('填寫錯誤:\n'+errors);
  }
  
  document.MM_returnValue = (errors == '');
}


function checktracking(num){
  var valid_num;
  document.err = '';
  
  if(num.length != 11) 	 document.err += '- 維修編號必須為11位數字!\n';
  
  if(num.length == 11){
  	valid_num = checkid(num);
  	//alert('valid num = ' + valid_num + ', num last string = ' + num.substring(10,11));
  	if(valid_num != num.substring(10, 11)){
  		document.err += '- 這不是一個正確的維修編號!';
  	}
  }
}
//Tracking number varification. Method is the same as First bank account verification method.
function checkid(num){
		var validation_num = '';
		var v = new Array(10);
		v[0] = 4; 
		v[1] = 3; 
		v[2] = 2; 
		v[3] = 8; 
		v[4] = 7;
		v[5] = 6; 
		v[6] = 5; 
		v[7] = 4; 
		v[8] = 3; 
		v[9] = 2;
		var Y =0;
		var Q =0;
		var X =0;
		var R =0;
		var i ;
		var num_array = new Array(11);
		for(var i=0; i <= num.length-1; i++){
			num_array[i] = num.substring( i, i+1); 
		}
		
		for(i=0; i <= v.length-1; i++){
			Y += num_array[i] * v[i];
		}
		
		Q = Math.floor(Y /11);
		X = (Q+1) * 11 -Y;
		R = X % 10;
		validation_num = R;
		return (validation_num==10) ? '0' : validation_num+''; //if the answer is 10, then validation number is 0.
}
//-->