flex, change the button image when mouse over/out

Question

with following code, i have implemented the image change when mouse hover the button. but the image name is hardcoded, which is specified in the style. how can make it parameterized? i want to reuse this small utility with image name as input parameter. all the image used(14 images in my case) will be included in the flex project. i am using flex 3

<mx:Style>  
    .myCustomButton {
        upSkin: Embed(source="jjyxfx.png");
        overSkin:Embed(source="cwgl.png");
       downSkin: Embed(source="cwgl.png");

    }
</mx:Style>

<mx:Button y="0" width="105" height="107" fillAlphas="[1.0, 1.0, 1.0, 1.0]" x="0" fillColors="[#3AA2D9, #3AA2D9]" styleName="myCustomButton" useHandCursor="true" buttonMode="true"/>

Answer 1

I don't believe you can't parameterize CSS styles; so you'll have to set the styles via ActionScript:

public function setStylesOnButton(upSkinValue:String,overSkinValue:String,downSkinStyle:String):void{
  myButton.setStyle('upSkin',upSkinValue);
  myButton.setStyle('overSkin',overSkinValue);
  myButton.setStyle('downSkin',downSkinStyle);
}

Make sure your button has an ID so you can access it in ActionScript:

<mx:Button id="myButton" y="0" width="105" height="107" fillAlphas="[1.0, 1.0, 1.0, 1.0]" x="0" fillColors="[#3AA2D9, #3AA2D9]" styleName="myCustomButton" useHandCursor="true" buttonMode="true"/>