Flash as3.0 load SWF failure resolution

Flash as3.0 load SWF code how to write? If there are 1.swf, with 2.fla load, in 2.FLA code how to write

Add: There is already a paragraph in 2.fla, load 1.swf is want to finish 2.FLA before the first paragraph after the 2.swf. So the code is written to the last frame of the 2.FLA itself.

var my_urlloader:loader=new loader ();
My_urlloader.load (New URLRequest ("swf.swf"));
My_urlloader.contentloaderinfo.addeventlistener (event.complete,_show);
function _show (e:event): void {
Addchild (My_urlloader);
}

Here's a paragraph written in class open loaded SwF method

var name_array:array=["swf/a.swf", "swf/b.swf", "swf/c.swf", "swf/d.swf"];//save an array of SWF names
var p:uint =new uint;//Remember that the first few SWF in the array are currently playing (the pointer starts at 0)
var play_mc:movieclip =new movieclip;//the currently playing SWF
//--------------------------------------------------------
Addchild (PLAY_MC);
var swf_loader:loader=new loader;
var swf_urlloader:urlloader =new Urlloader;
var swf_urlrequest:urlrequest =new URLRequest;
Swf_urlloader.dataformat =urlloaderdataformat.binary;
---------------------Binary load swf-------------------------
function Swfload () {
P=p<0? (name_array.length-1):p%=name_array.length;
try {
Swf_urlrequest.url =name_array[p];
Swf_urlloader.load (swf_urlrequest);
Swf_urlloader.addeventlistener (Event.complete, binaryloadcomplete);
} catch (_err:error) {
Trace (_err);
}
}
function Binaryloadcomplete (_evt:event): void {
Swf_loader=new loader;

Swf_loader.loadbytes (_evt.target.data);
Swf_loader.contentloaderinfo.addeventlistener (Event.complete, swfloadcomplete);
}
------------------------Load Completed------------------------
function Swfloadcomplete (_evt:event): void {
RemoveChild (PLAY_MC);
Play_mc=_evt.target.loader.content as MovieClip;
Play_mc.addeventlistener (Event.enter_frame,onmcenterframe);
Swf_loader.unload ();
Addchild (PLAY_MC);
}
-----------------------detect whether to play to the last frame---------------
function Onmcenterframe (_evt:event): void {
var _mc:movieclip=_evt.target as MovieClip;
if (_mc.currentframe ==_mc.totalframes) {
_mc.removeeventlistener (Event.enter_frame,onmcenterframe);
p++;
Swfload ();
}
Info_txt.text = "Current playback is:" +name_array[p]+ "(" +_mc.currentframe + "/" +_mc.totalframes + ")";
}
------------------------Detect button Events-----------------------
function Onbtnclick (_evt:mouseevent): void {
var _btn:button =_evt.target as button;
Switch (_BTN) {
Case PREV_BTN:
p--;
Break
Case NEXT_BTN:
p++;
Break
}
Swfload ();
}
Prev_btn.addeventlistener (Mouseevent.click, Onbtnclick);
Next_btn.addeventlistener (Mouseevent.click, Onbtnclick);
----------------------The first SWF is loaded by default-------------------
Swfload ();