How to call a function within a function??

[cardnexus]

I have two functions, check_info() and CheckCardNumber()
The first one is to validate forms with names and address.
The second one is to validate credit card numbers.
I call the first function to check all the forms except credit cards numbers.
I'm wondering if there's a way to call the credit card function at the same time.
I tried
<input type="submit" value="Submit" onclick="return check_info(); CheckCardNumber(this.form)" disabled>
but it works separately. It executes the first function and then executes the second not simultaneously.

I don't know if there's a way I can call the CheckCardNumber() function within the check_info() function so that it can execute at the same time.
Please help

Thanks

Following are the functions' code


<The first function------------------------------------------------------->

<SCRIPT LANGUAGE="JavaScript">
function check_email()

{

if (document.myform2.email1.value != "")

{

email_addr=new String(document.myform2.email1.value)

var the_length=email_addr.length;
var last_char=email_addr.charAt(the_length-1);




if (email_addr.indexOf('@',0)==-1 || email_addr.length < 5 || email_addr.indexOf('.',0)==-1 || last_char== '.')

{
return 1;
}


if (email_addr.indexOf('aiuonline',0) > -1)

{
return 3;
}


if (email_addr.indexOf('@',0) != -1)

{
check_point = email_addr.indexOf('@',0)

a = new Array()

m = 0

b= "abcdefghijklmnopqrstuvwxyz"

for (i=0;i<26;i++)

{
a[i]=b.charAt(i)
}

for (i=0;i<26;i++)

{
email_addr=email_addr.toLowerCase()



if (email_addr.indexOf(a[i],check_point) != -1) break
m=m+1

}


if (m==26)
{

return 2;
}


}

}

}

function check_info()


{


if (document.myform2.sFirstName.value == "")
{
alert("Please enter your firstname");
document.myform2.sFirstName.focus();
return false;

}
if (document.myform2.sLastName.value == "")
{
alert("Please enter your lastname");
document.myform2.sLastName.focus();
return false;

}


if (document.myform2.sZip1.value.length < 5)
{

alert("Please provide valid zip code");
document.myform2.sZip1.focus();
return false;

}


if (document.myform2.id.value == "")
{
alert("Please enter your desired ID");
document.myform2.id.focus();
return false;
}

if (document.myform2.id.value.length < 4)
{

alert("ID must be at least 4 characters");
document.myform2.id.focus();
return false;

}

if (document.myform2.pd1.value == "")
{

alert("Please enter your password");
document.myform2.pd1.focus();
return false;

}




<The second function------------------------------------------------>

<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
var Cards = new makeArray(8);
Cards[0] = new CardType("MasterCard", "51,52,53,54,55", "16");
var MasterCard = Cards[0];
Cards[1] = new CardType("VisaCard", "4", "13,16");
var VisaCard = Cards[1];
Cards[2] = new CardType("AmExCard", "34,37", "15");
var AmExCard = Cards[2];
Cards[3] = new CardType("DinersClubCard", "30,36,38", "14");
var DinersClubCard = Cards[3];
Cards[4] = new CardType("DiscoverCard", "6011", "16");
var DiscoverCard = Cards[4];
Cards[5] = new CardType("enRouteCard", "2014,2149", "15");
var enRouteCard = Cards[5];
Cards[6] = new CardType("JCBCard", "3088,3096,3112,3158,3337,3528", "16");
var JCBCard = Cards[6];
var LuhnCheckSum = Cards[7] = new CardType();
CheckCardNumber(form)
function called when users click the "check" button.

function CheckCardNumber(form) {
var tmpyear;
if (form.CardNumber.value.length == 0) {
alert("Please enter a Card Number.");
form.CardNumber.focus();
return;
}
if (form.ExpYear.value.length == 0) {
alert("Please enter the Expiration Year.");
form.ExpYear.focus();
return;
}
if (form.ExpYear.value > 96)
tmpyear = "19" + form.ExpYear.value;
else if (form.ExpYear.value < 21)
tmpyear = "20" + form.ExpYear.value;
else {
alert("The Expiration Year is not valid.");
return;
}
tmpmonth = form.ExpMon.options[form.ExpMon.selectedIndex].value;
// The following line doesn't work in IE3, you need to change it
// to something like "(new CardType())...".
// if (!CardType().isExpiryDate(tmpyear, tmpmonth)) {
if (!(new CardType()).isExpiryDate(tmpyear, tmpmonth)) {
alert("This card has already expired.");
return;
}
card = form.CardType.options[form.CardType.selectedIndex].value;
var retval = eval(card + ".checkCardNumber(\"" + form.CardNumber.value +
"\", " + tmpyear + ", " + tmpmonth + ");");
cardname = "";
if (retval)

[blm126]

What does it matter if it happens seperatly? The script should run fast enough that you never notice.

[tech_support]

Please: Please wrap your code in the [code] or [html] tags.