Tab order direction and table size

Hello.
I have a form with a table that should be filled by the user. The default tab order is Left to Right, and I need it to be Right to Left. I tried to set the tab order from the Tab Order tab, and it worked on the first row, but when adding rows their tab order is left to right again. How can I change the default tab order?
And one more thing - How can I get the size of the table (number of rows) with JavaScript?
Regards,
Arik

Hi Arick,
This is a standard functionality provided by Adobe form. You can see 'Tab order' under options, and using the shift key, decide the order in which you want the tab to move.
for the number of row, use the following ( i dont know if theres any standard function, but since its repeated nodes of a subform, you can calculate it in the following way)
I am assuming that the table is called 'Table1' defined under the root node, and has only headerRow defined. No FooterRow is defined
var count = 0;
var nNumRows = form.Table1.nodes.length;
for (var nNodeCount = 0; nNodeCount < nNumRows; nNodeCount ++){
if (Table1.nodes.item(nNodeCount).className == "subform") {
if (Table1.nodes.item(nNodeCount).name != "HeaderRow"){
count++;
the value of count is the no. of rows in the table

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