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private function drawDottenRect(g:Graphics,
x0:Number,
y0:Number,
x1:Number,
y1:Number):void{
drawDottedHorizontalLineTo(g,y0,x0,x1);
drawDottedVerticalLineTo(g,x0,y0,y1);
drawDottedHorizontalLineTo(g,y1,x1,x0);
drawDottedVerticalLineTo(g,x1,y0,y1);
}
private function drawDottedHorizontalLineTo(
g:Graphics,
y : Number,
x0 : Number,
x1 : Number
) : void
{
if( x0 < x1){
g.moveTo(x0, y);
for(var x:Number = x0 + start; x<x1; x+= dotLength + gap){
if( x + dotLength + gap <= x1){
g.lineTo(x + dotLength,y);
g.moveTo(x + dotLength + gap, y);
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