Smarty

[teddy]

I wanna to count the looping number in a nested loop. for example in PHP we can:
$count=1;
(for $i=0;$i<3;$i++)
(for $j=0;$j<4;$j++)
{echo "number is:".$count;$count++;}

//result is showing "number is: 1,2,.........12"

but how i can get the looping number in smarty?
like following code:
{section name=key loop=$a}
{$a[key]}
{section name=key1 loop=$b[key]}
{* some methods to get the cycling number here??*}
{/section}
{/section}

[messju]

see http://smarty.php.net/manual/en/language.function.counter.php
or maybe http://smarty.php.net/manual/en/language.function.cycle.php