Load many file XML

welcome.

i working flex 2 weeks , have 1 problem.

i have panel displays images when user hovers mouse on thumbnail images in horizontallist, @ bottom of panel. images in horizontallist taken xml file.

i did today, 3 buttons , - when click on button 1 - load xml no. 1 in horizontallist. when click on button 2 - load xml no. 2 in horizontallist etc..

 

<mx:xml id="xml" source="gallery.xml" />

    <mx:xmllistcollection id="xmllistcoll" source="{xml.image}" />

    <mx:menubar fontfamily="verdana" fontsize="11" fontstyle="normal" fontweight="normal">

        <mx:button label="button1" id="button1"/>

        <mx:button label="button2" id="button2"/>

        <mx:button label="button3" id="button3"/>

    </mx:menubar>

    <mx:panel id="panel"

            layout="absolute"

            stylename="opaquepanel"

            width="100%"

            height="100%">

        <mx:image id="img"

                scalecontent="true"

                horizontalcenter="0"

                verticalcenter="0"

                maintainaspectratio="true"

                width="250"

                height="250"

                completeeffect="fade" />

        <mx:controlbar>

            <mx:horizontallist id="horizontallist"

                    dataprovider="{xmllistcoll}"

                    labelfield="lbl"

                    iconfield="src"

                    itemrenderer="customitemrenderer"

                    columncount="4"

                    columnwidth="125"

                    rowheight="100"

                    width="100%"

                    horizontalscrollpolicy="on"

                    change="horizontallist_change(event);"

                    itemrollover="horizontallist_itemrollover(event);"

                    itemrollout="horizontallist_itemrollout(event);"

                    doubleclickenabled="true"

                    doubleclick="horizontallist_doubleclick(event);" />

        </mx:controlbar>

    </mx:panel>

 

</mx:application>

 

can me this, please?

can help?

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