Flash ad specs

Question

I create simple web ads for a client. under 30k, simple tween
animations. I have them asking me to create rollover ads now. My
questions are: Does someone need to host the swf that loads once a
viewer rolls over? These will certainly exceed the 30K limit,
right? Do I need to know the required dimensions before and after
the roll over? as well as which way it rolls out? How do I create
this effect? I know how to use basic action script with regards to
roll over effects but does this change the document size? or does
it link to another swf? Sorry if this seems like I'm asking too
much. point me toawrds a tutorial if you know of any.
cheers.

Answer 1

Here you go. This example has three clickTags. It's based off three buttons (clickBtn, clickBtn2, BTN) :
function clickedb(e:MouseEvent):void { //function for SIPC
    var sURL: String;
    if ((sURL = root.loaderInfo.parameters.clickTag)) {
        openWindow(sURL);
    //navigateToURL(new URLRequest("http://www.sipc.org/"), "_blank");
function clickedb1(e:MouseEvent):void { //function for SIPC
    var sURL: String;
    if ((sURL = root.loaderInfo.parameters.clickTag1)) {
        openWindow(sURL);
    //navigateToURL(new URLRequest("http://www.sipc.org/"), "_blank");
function clickedb2(e:MouseEvent):void { //function for SIPC
    var sURL: String;
    if ((sURL = root.loaderInfo.parameters.clickTag2)) {
        openWindow(sURL);
    //navigateToURL(new URLRequest("http://www.sipc.org/"), "_blank");
clickBtn.addEventListener(MouseEvent.CLICK, clickedb);
clickBtn2.addEventListener(MouseEvent.CLICK, clickedb1);
BTN.addEventListener(MouseEvent.CLICK, clickedb2);