I was having issues finding a good script for clickTags in AS3 so here are some I found:

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clickTag_bn.addEventListener(MouseEvent.CLICK, onMouseClick);
function onMouseClick(event:MouseEvent):void {
navigateToURL(new URLRequest(clickTag), “_blank”);
}

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or

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movieClipName.addEventListener(MouseEvent.MOUSE_UP, myclickTag);

function myclickTag(evt:MouseEvent):void {
var url:String = root.loaderInfo.parameters.clickTag;
var request:URLRequest = new URLRequest(url);
try {
navigateToURL(request, ‘_blank’);
} catch (e:Error) {
trace(“Error occurred!”); }
}

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