Struts: nesting <bean:write>tag in a <logic:equal> tag (inside a javascript)

I have a javascript that makes a 'tree-view' for me. I managed to already get the tree-view to build trees whose values are taken from my db. The problem is, I want to be able to check the bean of the 'first' array such that if it equals the one located in the second array, it will print/iterate.

Here's a short explanation of my code: the changeItemProducts array is only used to get the 'subject' names. Inside each 'subject' are sub-entries. (For example, Paint has sub-entries like: watercolor, etc). Now, the changeItems array contains the sub-entries (I also added in this array from what 'subject' they come are from).

Now I want to check that if the value of the subject in the changeItems array = value of the subject in the changeItemProducts array, print all the sub-entries. If not, skip it (because it may not have any sub-entries yet in the db) and check the next entries.

Here's my Javascript code for it:

<logic:iterate id="changeItemProduct" name="changeItemProducts">

      folCA = insFld(foldersTree, gFld("<bean:write name="changeItemProduct" property="productName" />", ""))
            headCA = insDoc(folCA, gLnk("S", makeHeader("Title","#cccccc"), "",makeHeader("CR#","#cccccc"),makeHeader("Date Submitted","#cccccc"),makeHeader("Target Date","#cccccc"),makeHeader("Phase","#cccccc")))
            headCA.iconSrc = ICONPATH + "ftv2blank.gif"
               
            <logic:iterate id="changeItem" name="changeItems">
                <logic:equal name="changeItem" property="productName" value="<bean:write name="changeItemProduct" property="productName" /> ">
                    insDoc(folCA, gLnk("S", "<bean:write name="changeItem" property="title" />", "/ADM/GetWorkOrders.do?changeItemNumber=<bean:write name="changeItem" property="changeItemNumber" />", "<bean:write name="changeItem" property="changeItemNumber" />", "<bean:write name="changeItem" property="dateSubmitted" />", "<bean:write name="changeItem" property="targetDate" />", "<bean:write name="changeItem" property="phaseNumber" />"))
                </logic:equal>
            </logic:iterate>
               
</logic:iterate>

The error I get is: equal symbol expected

on this part of the code(at least I think it is this part of the code):

<logic:equal name="changeItem" property="productName" value="<bean:write name="changeItemProduct" property="productName" /> ">

I heard that nesting within a struts tag is not possible. Is there a way to do this? Thanks in advance!