//Check login info.
function check(who)
{
	var num = /^[0-9]+$/;
	

	//Card of Royal union Bank
	var cardno1 = document.loginForm.cardNo1.value;
	var cardno2 = document.loginForm.cardNo2.value;
	var cardno3 = document.loginForm.cardNo3.value;				
	
	if(cardno1=="")
	{
		alertInfo(who,"请在卡号的第一段中输入四位数字!");
		document.loginForm.cardNo1.focus();
		return false;
	}
	if(cardno1.length<4)
	{
		alertInfo(who,"请在卡号的第一段中输入四位数字!");
		document.loginForm.cardNo1.focus();
		return false;
	}
	if(!num.test(cardno1))
	{
		alertInfo(who,"卡号只能输入数字!");
		document.loginForm.cardNo1.focus();
		return false;
	}
	//第二段
	if(cardno2=="")
	{
		alertInfo(who,"请在卡号的第二段中输入四位数字!");
		document.loginForm.cardNo2.focus();
		return false;
	}
	if(cardno2.length<4)
	{
		alertInfo(who,"请在卡号的第二段中输入四位数字!");
		document.loginForm.cardNo2.focus();
		return false;
	}
	if(!num.test(cardno2))
	{
		alertInfo(who,"卡号只能输入数字!");
		document.loginForm.cardNo2.focus();
		return false;
	}
	//第三段
	if(cardno3=="")
	{
		alertInfo(who,"请在卡号的第三段中输入四位数字!");
		document.loginForm.cardNo3.focus();
		return false;
	}
	if(cardno3.length<4)
	{
		alertInfo(who,"请在卡号的第三段中输入四位数字!");
		document.loginForm.cardNo3.focus();
		return false;
	}
	if(!num.test(cardno3))
	{
		alertInfo(who,"卡号只能输入数字!");
		document.loginForm.cardNo3.focus();
		return false;
	}		
	
	
	var psw = document.loginForm.password.value;
	if(psw=="")
	{
		alertInfo(who,"请输入您的卡号密码!");
		document.loginForm.password.focus();	
		return false;
	}
	
	return true;
}
function alertInfo(who,info)
{
	if(who=="1")
		alert(info);
	else
		alertError(info);
}
//不能输入字母
function CardKeyDown()
{
	var key=window.event.keyCode;
	if(key>=65 & key<=90 || key==32)
		window.event.returnValue= false;
		
}
function T0_onkeyup()
{
	if(document.loginForm.cardNo1.value.length==4)
	{
	  document.loginForm.cardNo2.focus();
	}
}
 
function T1_onkeyup()
{
	if(document.loginForm.cardNo2.value.length==4)
		document.loginForm.cardNo3.focus();
} 
function T2_onkeyup()
{
	if(document.loginForm.cardNo3.value.length==4)
	{
		document.loginForm.password.focus();	
	}
}	
function T3_onkeyup()
{
	if(document.loginForm.cardNo4.value.length==4)
	{
		document.loginForm.password.focus();		
	}
}	
function test()
{
	document.loginForm.cardNo2.focus();
	
}
function Trim(TRIM_VALUE){
 if(TRIM_VALUE.length < 1){
  return"";
 }
 TRIM_VALUE = RTrim(TRIM_VALUE);
 TRIM_VALUE = LTrim(TRIM_VALUE);
 if(TRIM_VALUE==""){
  return "";
 }
 else{
  return TRIM_VALUE;
 }
} //End Function

function RTrim(VALUE){
 var w_space = String.fromCharCode(32);
 var v_length = VALUE.length;
 var strTemp = "";
 if(v_length < 0){
  return"";
 }
 var iTemp = v_length -1;

 while(iTemp > -1){
  if(VALUE.charAt(iTemp) == w_space){
  }
  else{
   strTemp = VALUE.substring(0,iTemp +1);
   break;
  }
  iTemp = iTemp-1;

 } //End While
 return strTemp;

} //End Function

function LTrim(VALUE){
 var w_space = String.fromCharCode(32);
 if(v_length < 1){
  return"";
 }
 var v_length = VALUE.length;
 var strTemp = "";
 var iTemp = 0;

 while(iTemp < v_length){
  if(VALUE.charAt(iTemp) == w_space){
   }
   else{
    strTemp = VALUE.substring(iTemp,v_length);
    break;
  }
  iTemp = iTemp + 1;
 } //End While
 return strTemp;
} //End Function