function btnConceptos(nivel) {     
document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"  codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="150" height="30" title="Conceptos">');
document.write('<param name="movie" value="'+nivel+'flash/swf/conceptos.swf" />');
document.write('<param name="quality" value="high" />');
document.write('<param name=wmode value=transparent />');
document.write('<embed src="'+nivel+'flash/swf/conceptos.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="150" height="30"></embed>');
document.write('</object>');
}