Insert text after a specific text (top insertion point of page)

Hello guys,

How can add a flag (a simple text) on top of page after a specific flag (unique piece of text). Let me try to explain:

I am inserting a flag on top of a each page of document.

var myText={flag1};  

myDoc.pages.textFrames.itemByName("main").insertionPoints.item(0).properties = { appliedCharacterStyle : "pbBlank_CS", contents:myText};

In second go, I am again inserting another flag on top of pages:

var myText={flag2};  

myDoc.pages.textFrames.itemByName("main").insertionPoints.item(0).properties  = { appliedCharacterStyle : "pbBlank_CS", contents:myText};

The order I am expecting should be

{flag1}{flag2} but on some pages it appears in reverse form

{flag2}{flag1} which is not expected. I am thinking following way to keep the correct order:

1. Finding "}" on top , like {flag1} text start text start .............. and then inserting my second flag {flag2} to it to get the correct order {flag1}{flag2} text start text start.

The reason why I would like to search for last "}" as there may as many as flags need added to top of page something like {flag1}{flag2}{flag3}{flag4} etc. This will ensure me to have the correct order.

Hope I am making sense.

Any thoughts in this regard will be highly appreciated.

Regards,

--PC