. "{\n"
. " var left = (screen.width - $width) / 2;\n"
. " var top = (screen.height - $height) / 2;\n"
. " return window.open(url, title, 'width=$width,height=$height,left='+left+',top='+top+',screenX='+left+',screenY='+top+',status=no,scrollbars=yes');\n"
. "{\n"
. " var left = (screen.width - $width) / 2;\n"
. " var top = (screen.height - $height) / 2;\n"
. " return window.open(url, title, 'width=$width,height=$height,left='+left+',top='+top+',screenX='+left+',screenY='+top+',status=no,scrollbars=yes');\n"