[Zope] Using Layer with cookies

On Clientside having an orderform, where the user can select a part after giving some values for a Query(ordernumber, partname,...). the values are send to the dtml-Dcument, where a SQL-Query puts the Data to an array. First writing a cookie, then updating a layer.src="dtml-Document Name", in the end display the array-data. This works fine, until the cookie value has whitespaces(' '). Writing a cookie "value="a b c";expires...", on Clientside(the mainform) the REQUEST.cookie is korrekt, but on the serverside(the layer.src) the REQUEST shows only cookies: value="a" Why is the value truncated? Is there another way to get dynamic Data in a html-form? thanks Axel