How to refresh subforms index

Hi all,
is there any way for me to refresh the form subform index in form ready:layout?
i am having "2" subforms in my XDP form at page 6, as subform1[0],subform1[2].
A user can :
i ) add more subform
ii ) delete subform
The "add subform' will add a new subform by cloning the subform1 as reference subform.
The newly created subform will be placed on top of the subform1 (using moveinstance command )
Problem,
i am able to delete the subform1[2] on form load.
if i add "2" new subforms and delete the last subform which is previously subform1[2] or the last subform in the form, i am not able to delete that subform. The delete script is not working.
I guess it is the subform index issue as the newly created subform give some conflict in indexing for the existing subform1[2] in the form.
So, is there any ways for me to refresh or re-arrange " all the subforms indexs'' on form ready:layout ?
regards,
Jeeva

Hi Niall,
I change my approach.
instead add subform by function addInstance, I create 3 static subform in the form.
Make 2 of them invisible and if user want more subform, make visible the other hidden subform.
Now the problem is, if the user add 3 subform and delete ( real logic - in button is hidden the subform )the second subform. and later add again
a new subform, subform2 will come visible.
As subform2 in the form located below subform1, the time perform "add subform" once after the deletion, this subform
appear below the subform1 and make the user's data entry not user friendly as need to key-in in the second subform in the form.
For the reason, i change the script to
     --> the time add subform, i do verify is subform3 is presence visible, if it's presence visible, then i did :
          if(subform2.presence=="hidden"){
               if(subform3.presence=="hidden"){
               subform2.presence="visible";
                 _subform2.moveInstance(1,0);     }
               else
               subform2.presence="visible";
only the subform2.presence="visible"; is working and   _subform2.moveInstance(1,0);     is not work. It not switch the subform location.
any suggestion , Niall?
https://acrobat.com/#d=dOgMjMo0epDqIpcuStUNNg

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(http://www.oracle.com/technology/products/jdev/howtos/1013/updtable/index.html?_template=/ocom/technology/content/print)
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Hi
Thanks for your infos.
Yes exactly I use almost the same code you have post here.
Could You answer to my next questions?
First - >what do you mean by saying that "it's not good idea using refreshing in IE?" Of course I use refreshing in backing_bean for my button "remove" that removes row, commit changes to database and refresh table, almost the same as You said in your post:
Code in backing_bean is and comments on difference to Your code is below:
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<Item Value="uwagi"/>
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My second question is, why when you use refresh button in IE (I know is not recommended as You said, but sometimes user do it, so I want prevent situations that I will describe here) so when I press refresh button in IE exactly after removing one row by clicking my button, refreshing by pressing IE button is doing the same --> is deleting next row. How to stop deleting row, when for example user would press IE refresh button after pressing remove button for table. If I change selection in table after deleting row, and press refresh button in IE, instead of deleting row, I got error message: JBO-29000: JBO-35007: and
JBO-35007. So where Im doing wrong. Maybe I should do sth with postback ? Could You help me? Thanks in advance
Last one question: what is the difference between using delete and removeEntity from operations node? Im now reading carefully ADF Dev Guide, so I hope I can find infos there? But if You know, please answer to this question.
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