var obHTML =
    '<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="356" height="350">'+
      '<param name="allowScriptAccess" value="sameDomain" />'+
      '  <param name="movie" value="welcome.swf">'+
      '<param name="menu" value="false" />'+
      '<param name="quality" value="high" />'+
      '<param name="wmode" value="transparent" />'+
      '<param name="bgcolor" value="#ffffff" />'+
      '<embed src="welcome.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="356" height="350"></embed>'+
'</object>';
//the next line needs to be in an external file
document.write(obHTML);