The following xml values is getting from php file
Code:
<result>
       <list>
          <node>air</node>
          <node>flex</node>
          <node>android</node>
       </list>
    </result>
i am calling this xml using httpservice

Code:
  <mx:HTTPService 
       	 	id="project" 
        	url="http://localhost/eshpm/AIR/newproject.php"
        	method="POST" result="onResult_projectname(event)" resultFormat="e4x">
    	      	<mx:request xmlns="">
    	      		<name>yes</name>
    	      	</mx:request>
    </mx:HTTPService>
The result is obtained using the function


Code:
 private function onResult_projectname(evt:ResultEvent):void
     {
            
          	xmldata = new XML(evt.result);
            xmlList_user = new XMLListCollection(xmldata.list);  			
            
            tree.dataProvider = xmlList_user.children();    		
     }
The problem is that i am able to display the values in Tree.......but it is repeating

ie, "air" is comming in tree twice....

plz help.............thanks