Dynamic JavaScript Links

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Hi Everyone,
    I am having problems trying to build an A HREF link with a userid that it 
found a cookie. When a person first comes to my webpage, it will look to see if 
it has a userid cookie, if not it will fill in the "userid" with guest. Then 
will allow me to set custom prices for items per customer.
 Here is what I have:
<td height="11"><a href="" onClick="gotoiteminq();" target="mainFrame"><img 
src="Images/Clip%20Art/Accessories%20Button.gif" width="118" height="26" 
border="0"></a></td>.

Here is the JavaScript Source:

function gotoiteminq() {
 window.location="/cgi-bin/iteminq?XCAT=ACC&USERID=(userid)";
 }

The /cgi-bin/iteminq?XCAT=ACC&USERID=(userid) is a CGI program on the 400. I 
will get the variable userid from the GetCookie function. I do have that 
working. I just need help in getting the window and links to build dynamically. 
Someone please lead me in the right direction.



Thanks,

Justin Houchin
Programmer
Reliatek, Inc
jhouchin9@charter.net