Dynamic text -bullet .Help

Can anyone tell me if there is a way of making a dynamic text field list have a square bullet rather than a circle bullet?
example is bad.I need work with UIScrollBar , not ScrollBar

text_arr = new Array(“This is the text paragraph #1… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah…”,
“This is the text paragraph #2… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah…”,
“This is the text paragraph #3… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah…”,
“This is the text paragraph #4… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah… In this paragraph, blah blah…”);

textTF = new TextFormat();
textTF.bold = true;
textTF.color = 0x0000FF;
textTF.font = “Verdana”;
textTF.size = 12;

this.createEmptyMovieClip(“Holder”, 100);
this.Holder.attachMovie(“Spacer”, “Spacer”, 150, {_x:0, _y:0});

this.Holder.attachMovie(“Bullet1”, “Bullet1”, 200, {_x:10, _y:10});
this.Holder.createTextField(“Text1”, 250, 20, 0, 150, 100);
this.Holder.Text1.border = showBorder;
this.Holder.Text1.multiline = true;
this.Holder.Text1.wordWrap = true;
this.Holder.Text1.text = text_arr[0];
this.Holder.Text1.setTextFormat(textTF);

this.Holder.attachMovie(“Bullet2”, “Bullet2”, 300, {_x:10, _y:110});
this.Holder.createTextField(“Text2”, 350, 20, 100, 150, 100);
this.Holder.Text2.border = showBorder;
this.Holder.Text2.multiline = true;
this.Holder.Text2.wordWrap = true;
this.Holder.Text2.text = text_arr[1];
this.Holder.Text2.setTextFormat(textTF);

this.Holder.attachMovie(“Bullet3”, “Bullet3”, 400, {_x:10, _y:210});
this.Holder.createTextField(“Text3”, 450, 20, 200, 150, 100);
this.Holder.Text3.border = showBorder;
this.Holder.Text3.multiline = true;
this.Holder.Text3.wordWrap = true;
this.Holder.Text3.text = text_arr[2];
this.Holder.Text3.setTextFormat(textTF);

this.Holder.attachMovie(“Bullet4”, “Bullet4”, 500, {_x:10, _y:310});
this.Holder.createTextField(“Text4”, 550, 20, 300, 150, 100);
this.Holder.Text4.border = showBorder;
this.Holder.Text4.multiline = true;
this.Holder.Text4.wordWrap = true;
this.Holder.Text4.text = text_arr[3];
this.Holder.Text4.setTextFormat(textTF);

this.attachMovie(“FScrollPaneSymbol”, “contentSP”, 50, {_x:50, _y:50});
this.contentSP.setSize(200, 100);
this.contentSP.setScrollContent(this.Holder);

createClassObject(mx.controls.UIScrollBar, “my_sb”, 170);
my_sb.setScrollProperties(20,0,99);
my_sb.setSize(200, 100);
my_sb.move(this.Holder._x + this.Holder._width,this.Holder._y);