Overview:
This is a basic example of using a swf file as a bridge between the server and the wrapper.

Doing things this way is much like ajax.


The same methodology is used by this section to change content.

The banner above acting as the bridge to the database that holds each example.




The example below shows just the basics of an AS3 bridge method.

Because the swf is used only as a bridge, its size does not matter, neither does its visibility.

In this example the swf is a little square just so you can see it.





package
{
    
    
    import flash.display.Sprite;
    import flash.external.ExternalInterface;
    import flash.events.Event;
    import flash.net.URLRequest;
    import flash.net.URLLoader;
    import flash.net.URLVariables;
    import flash.net.URLRequestMethod;
    
    public class ActionScriptBridge extends Sprite 
    {
        
        
        
        public function ActionScriptBridge()
        {
            
            
            if (ExternalInterface.available)
            {
                
                /* we are using this file only as the transport between wrapper and server
                in the wrapper a function will be set up to call jsinitiate */
                
                
                ExternalInterface.addCallback("jsinitiate", theBridge);
                
            }
            else 
            { 
                /* external interface fallback options would go here */
            }
            
            
            
            
        }
        
        
        private function theBridge(thisFile:String):void 
        {
            
            var getThis:URLLoader = new URLLoader();
            getThis.addEventListener(Event.COMPLETE, showDataGot);
            
            var theVars:URLVariables = new URLVariables();
            theVars.needforpost="avar";
            
            var theRequest:URLRequest = new URLRequest(thisFile);
            theRequest.data=theVars;
            theRequest.method = URLRequestMethod.POST;
            
            getThis.load(theRequest);
            
        }
        
        private function showDataGot(event:Event):void 
        {
            
            /* this function gives the response to the wrapper
            by calling thedatagot with the response as the arg */
            
            var dataGot:URLLoader = URLLoader(event.target);
            ExternalInterface.call("thedatagot", dataGot.data);
            
        }
        
        
    }
    
}

function bridgecrosser(thisfile)
{

  try
  {
  var fcontenterj=window.document.getElementById('tbridge');
  }
  catch(e)
  {
    try
    {
     var fcontenterj=window.document.tbridge;
    }
    catch(e)
    {
       var movie=tbridge;
       
       if (navigator.appName.indexOf("Microsoft")!=-1 || navigator.appName.indexOf("MSIE")!=-1)
       { 
          if (window.document[movie])
          {var fcontenterj=window.document[movie];}
          else
          {var fcontenterj=window[movie];};
       }else{
         if (document.embeds[movie])
         {var fcontenterj=document.embeds[movie];}
         else
         {var fcontenterj=document[movie];};
       }
    }
  }
  try
  {
  fcontenterj.jsinitiate(thisfile);
  }
  catch(e)
  {
    var nojstoflerthreeas="yes";
  }
}

function getinputthencross()
{

var firstnum = document.getElementById("fnum").value;
var secondnum = document.getElementById("snum").value;

bridgecrosser("responsivepage.php?numf="+firstnum+"&nums="+secondnum);

}


function thedatagot(fjdata)
{

document.getElementById('fjholder').innerHTML=fjdata;

}

if (isset($_GET["numf"]) && isset($_GET["nums"]))
{

$firstn=strip_tags(urldecode($_GET["numf"]));
$secn=strip_tags(urldecode($_GET["nums"]));

//validation...

$additionre = $firstn + $secn;
$subtractre = $firstn-$secn;
$multiplyre = $firstn*$secn;

echo("your numbers when: <br>added = ".$additionre."<br>subtracted = ".$subtractre."<br>multiplyed = ".
$multiplyre."<br><br> the epox time is now: ".time());
exit;

}