How to change button caption color in pdf by javascript

[infomamun]

Hi There,

I want to toggle the button color of a pdf form along the with the caption/label color of each button. For this, I have written this code:

for(i=1;i<bn+1;i++){
var b = "btn"+i;
var f = this.getField(b);
if (color.equal(f.fillColor, color.white)){
f.textColor = color.white;
f.fillColor = color.red;
}else{
if(bn==1){
f.fillColor = color.white;
f.textColor = color.black;
}else{
f.textColor = color.black;
}
}

Everything is working well except for the color of the Caption/Label. It is black in default and remains black even the fill color is changing. How to change the Caption/Label color to white too?

[Bernd Alheit]

What is the value of variable "bn" ?

[infomamun]

It is the current button number. Let's say I have five buttons which names are btn1, btn2, btn3, btn4 & btn5 respectively.

[Bernd Alheit]

Where does you set or change the variable "bn" ?

[infomamun]

Actually this function will be put on Document Label (let's say function name is bcolor(bn) and in every button, an action will be set. As for example in btn3, the javascript action will be:

bcolor(3)

where 3 is the current button number and 5 is the highest button number.

[Bernd Alheit]

For this sample the fill color will be changed from white to red.

What happens when you use bcolor(1)?

[Thom Parker]

So you are saying that when the fill color is changing to red, that the text color does not change to black?

You're code looks correct and "textColor" is the right property.  I would suggest putting "console.println()" statements into the code so you can see which code blocks are being run with which button numbers. 

[infomamun]

No, I want when the fill color will be red, at that time text color will be white so that text can be seen clearly.