if (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"]){
  document.write('<embed src="teeth_img/home/flash/sweeny.swf"  base="." wmode="window" menu="true" quality="high" bgcolor="#ffffff"');
  document.write('width="735" height="152" type="application/x-shockwave-flash"');
  document.write('pluginspage="http://www.macromedia.com/go/getflashplayer" />');
}