How can I open linked external PDF in existing window (javascript)??

Hi, all.

This is my 2nd day fiddling with java script and I would appreciate any help.

Here is what I want to do...

  Add links on each page which opens an external PDF file in existing window

Here is the code

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var linkWidth = 36, linkHeight = 18;

//get target PDF name

var myname = this.documentFileName;

    myname = myname.slice(0,1);

var my_target_pdf = myname + " Section illustration.pdf";

//do it all pages

for ( var i=0; i < this.numPages; i++)

{

var cropBox = this.getPageBox("Crop", i);

var offsetLink = cropBox[2] - cropBox[0] - linkWidth;

var linkRect2 = [602,linkHeight+550,linkWidth + offsetLink-32,550];

var rhLink = this.addLink(i, linkRect2);

app.openInPlace = true;

rhLink.setAction("app.openDoc('" + my_target_pdf + "', this);" );

}

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It links to the external PDF, however it opens new window.

Also my customer does not want to see security alert when the external PDF opens.

So I don think I can use launchURL...

Any help is really appreciated.

Thank you!