YUI and vB SESSIONURL question

[JamesAB]

I'm trying to use the YUI uploader with a vBulletin script, but I'm having trouble with SESSIONURL.

This works for me without SESSIONURL:

function upload() {
     if (fileID != null) {
	uploader.upload(fileID, "http://tforum.mydomain.com/uploadzip.php", 
	                "POST", 
	                {"do":"doupload", 
		"albumid":jababumid, 
		"jabuniquezip":jabuniquezip,
		"securitytoken":SECURITYTOKEN}, 
		"upload");
	}	
}

However, I think I should be using SESSIONURL with securitytoken.

When I change the line to:

SESSIONURL + "securitytoken":SECURITYTOKEN},

Now I get a javascript error.

Is SESSIONURL supposed to be empty or NULL sometimes?

Any ideas or advice?

Thanks,
James