swfObject looses path to file with permalinks

Hi, i’m using swfObject in my header to output my swf, so that lightbox plugin can overlay it in FF and Safari3
i have a problem where the script cant find a path to file.
works on the .htaccess designated homepage, but those urls that are generated by the permalinks makes the script loose the swf file.

using custom permalink structure:
/%monthnum%/%category%/%postname%.html

swfObject code:

var so = new SWFObject("https://www.nomand.net/blog/wp-content/themes/nomand2/images/header2.swf", "logo", "800", "120", "8", "#7c7c7a");
	so.addParam("wmode", "transparent");
	so.addParam("quality", "high");
	so.addParam("allowFullScreen", "false");
	so.write("logo");

so using a full link to swf file shouldnt behave this way, because the rest of the images work fine.
cant get my head around this. any clue?