Set a layer dynamically as a child

<layer	name="img_bg1"
					url="plugins/textfield.swf"
					keep="true" type="container" visible="false"
					align="center"
					width="720" height="605" x="0" y="0" zorder="10"
					background="true" backgroundcolor="0xFFFFFF" backgroundalpha="0.7"
					roundedge="20">
				<layer	name="title1"
						url="plugins/textfield.swf"
						enabled="false"
						align="top" edge="top"
						width="700" x="0" y="10"
						autoheight="true"
						background="false"
						border="false"
						roundedge="10"
						css="text-align:left; color:#444444; font-family:Arial; font-size:20px;"
						html="[b]TITOLO[/b]"
						/>
				<layer	name="close_img_bg1"
						url="plugins/textfield.swf"
						enabled="true"
						align="topright" edge="topright"
						width="30" x="10" y="10"
						autoheight="true"
						background="true" backgroundcolor="0x000000" backgroundalpha="0.9"
						border="false"
						roundedge="10"
						css="text-align:center; color:#888888; font-family:Arial; font-size:20px;"
						html="[b]X[/b]"
						onclick="switch(layer[img_bg1].visible); set(layer[info_data1].visible,false);"
						/>


                                        ...


					</layer>

<layer name="button" visible="true" url="skin/zoominhotspot.png" orientation="portrait" keep="true" align="righttop" x="50" y="50" onclick="checkoriantation();" />




		
<action		name="checkoriantation">
			if(layer[%1].orientation == 'landscape', build_hbox(), build_vbox());
			</action>
			
			
<action		name="build_hbox">			


			</action>




<action		name="build_vbox">			


				set(layer[img_bg1].'url,plugins/textfield.swf');
				set(layer[img_bg1].keep,true);
				set(layer[img_bg1].visible,false);
				set(layer[img_bg1].align,center);
				set(layer[img_bg1].width,720);
				set(layer[img_bg1].height,605);
				set(layer[img_bg1].x,0);
				set(layer[img_bg1].y,0);
				set(layer[img_bg1].zorder,10);
				set(layer[img_bg1].background,true);
				set(layer[img_bg1].backgroundcolor,'0xFFFFFF');
				set(layer[img_bg1].backgroundalpha, 0.7);
				set(layer[img_bg1].roundedge,20);


					set(layer[title1].parent,layer[img_bg1]);
					set(layer[title1].url,'plugins/textfield.swf');
					set(layer[title1].enabled,false);
					set(layer[title1].align,top);
					set(layer[title1].edge,top);
					set(layer[title1].width,700);
					set(layer[title1].x,0);
					set(layer[title1].y,10);
					set(layer[title1].autoheight,true);
					set(layer[title1].background,false);
					set(layer[title1].border,false);
					set(layer[title1].roundedge,10);
					set(layer[title1].css,'text-align:left; color:#444444; font-family:Arial; font-size:20px;');
					set(layer[title1].html,'[b]TITOLO[/b]');
					set(layer[title1].height);
					set(layer[title1].height);


					set(layer[close_img_bg1].parent,layer[img_bg1]);
					set(layer[close_img_bg1].url,'plugins/textfield.swf');
					set(layer[close_img_bg1].enabled,true);
					set(layer[close_img_bg1].align,topright);
					set(layer[close_img_bg1].edge,topright);
					set(layer[close_img_bg1].width,30);
					set(layer[close_img_bg1].x,10);
					set(layer[close_img_bg1].y,10);
					set(layer[close_img_bg1].autoheight,true);
					set(layer[close_img_bg1].background,true);
					set(layer[close_img_bg1].backgroundcolor,'0x000000');
					set(layer[close_img_bg1].backgroundalpha,0.9);
					set(layer[close_img_bg1].border,false);
					set(layer[close_img_bg1].roundedge,10);
					set(layer[close_img_bg1].css,'text-align:center; color:#888888; font-family:Arial; font-size:20px;');
					set(layer[close_img_bg1].html,'[b]X[/b]');
					set(layer[close_img_bg1].onclick,'switch(layer[img_bg1].visible); set(layer[info_data1].visible,false);');


                        ...


			</action>