xQuery strip namespace

hi every one

i use the following xquery query in java , even i wrote the function
"declare xmlspace  strip;"at the begining of the query i still get the
name space declaration associate with the elements name

and i have no idia on how to strip all the namspaces

any help please


public static String theBodyofquery6(String last,String gridRef,String
Stime,String Sdate,String Etime,String Edate){
             String result= " declare xmlspace  strip;  <SystemRecord> { 
for $a in doc(\"observation.xml\")//observation where  $a
/last=\""+last+"\" and   $a/gridRef=\""+gridRef+"\" and $a
/time >=\""+Stime+"\" and  $a /date >=\""+Sdate+"\" and $a
/time <=\""+Etime+"\" and $a /date <=\""+Edate+"\"     return
 <item>   { $a /* }      </item> } </SystemRecord>";

            return result;
     }