ORD in web_reg_save_param or ORDINAL represents the position
of the desired data in a list of matching output values that
have passed the left and right boundary test.

For e.g., let us assume your server output looks like this :

the table value created is: 1234 and can be used
the table value created is: 1235 and can be used
the table value created is: 1236 and can be used

Here the LEFT and RIGHT boundaries are same for all the
three values 1234, 1235 and 1236. But you need only the
value 1236. If this is the case, you need to use the OPTION
'ORD' in this method. ORD indicates which value among the
matching ones must be retrieved

If you specify ALL, it will return an ARRAY WITH ALL
MATCHING VALUES in the array. Hence, your array will have
1234, 1235, 1236.

For capturing ORD=3 occurrence and using it in
web_submit_data, store ORD=3 occurrence in a PARAMETER
through web_reg_save_param. 
Replace the data in the web_submit_data with the PARAMETER
CREATED.

if u want a perticular value from a list of matches which 
having the same LB and RB then we go for ORD=3

e.g:

abc234xzc
abc456xzc
abc789xzc
abc980xzc
abc567xzc

if u want the value 789 from that list
then u set as ORD=3
it will returns that value
this concept is used for corelation