Help converting AS2 to AS3

1

Hi im new to AS3 and am having some trouble converting some code from AS2…

here is my AS2 code;


on (release) {
    if (_level0.linkTag.substr(0,5) == "http:")
        getURL(_level0.linkTag,_level0.targetTag);
    else
        getURL("http://www.mydomainname.com","_blank");
}

here is my AS3 code that does not work;


function  myButtonAction(eventObject:MouseEvent) {
 if (_level0.linkTag.substr(0,5) ==  "http:") {
  var url:String =  _level0.linkTag;
  var request:URLRequest = new  URLRequest(url);
  navigateToURL(request, _level0.targetTag);
 }
 else {
  var url:String =  " http://www.mydomainname.com";
  var  request:URLRequest = new URLRequest(url);
  navigateToURL(request, '_blank');
 }
}
  
buttonLink.addEventListener(MouseEvent.CLICK,myButtonAction);

Any help with this would be much appreciated!!!:beam: