Change some code from as3 to as2

Hi, I want to use as2 because it compatible with my website.

I want to change some code from as3 to as2

/////////////////////////////image1////////////////////////////////
if(MovieClip(this.parent).imagetxt.text == "a") {
    var imgurl:String = "C:/Users/Thái/Desktop/ls/cotton-1.jpg";
    var myrequest:URL = new URL(imgurl);
    myloader.scaleContent = true;
    myloader.load(myrequest);
}
/////////////////////////////image2////////////////////////////////
else if(MovieClip(this.parent).imagetxt.text == "b") {
    var imgurl2:String = "http://aloflash.com/images/upload/3.jpg";
    var myrequest2:URLRequest = new URLRequest(imgurl2);
    myloader.scaleContent = true;
    myloader.load(myrequest2);
}

thank you for your support.