How to give all duplicate checkbox names a unique name?

[2Charlie]

I found this article that talks about rename all duplicate field names. 

    for (var i=0;i<200;i++)
    {
    try{
    var ts=this.getField("Name1."+i).textSize;
    var tf=this.getField("Name1."+i).textFont;
    var rct=this.getField("Name1."+i).rect;
    var pg=this.getField("Name1."+i).page;
    var f=this.addField("name."+i,"text",pg,rct);
    f.textSize=ts;
    f.textFont=tf;
    }catch(e){break}
    }

this.removeField("Name1");

I believed this script is for text box. I need to rename all my duplicate checkbox names. Do I sipmly changed the "text" to "checkbox" for checkbox field instead of text box field? I tried that and it didn't really work. I no longer can click on the checkbox once I ran this script. Any suggestion is much appreciated.

[try67]

If they all start with "Name1." then you can do it like this:

this.getField("Name1").getArray().length;

[2Charlie]

This didn't look right because it only shows 1.

this.getField("Name1").getArray().length;

[Bernd Alheit]

this.getField("Name1").getArray().length;