Hi this migth help
<mm:import id="optionalParams" vartype="list">width,align,hspace,border,class,style,alt</mm:import> <mm:stringlist referid="optionalParams" id="current"> <mm:notpresent referid="$current"><mm:import externid="$current"/></mm:notpresent> <mm:present referid="$current"><mm:write/>="<mm:write referid="$current"/>" </mm:present> </mm:stringlist>
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