Flash Image Map Multiple Link - No Compiler Error, But Not Working

[srawr42 0]

Hello,I've made an image map in Flash using AS3, however it does not seem to be working properly.The links only work in a strange succession. In order to click all the links you must first click the last link followed by the first link, then the second link. After that the image map behaves as it is supposed to. I'm not sure why this is happening.It complies without error and aside from the little quirk mentioned above, it works beautifully.I've checked and double checked the AS, even copied and pasted some code from one button to another to see if it would make a difference, but to no avail.I am using the code listed below:

button1.addEventListener(MouseEvent.CLICK, callLink1);function callLink1 (event: MouseEvent) :void {     var url:String = ("https://www.google.de/?gfe_rd=cr&ei=BwkjVKfAD8uH8QfckIGgCQ&gws_rd=ssl;);     var request:URLRequest = new URLRequest (url);    try         {         navigateToURL (request, "_parent");        }         catch (e:Error) {            trace ("Error occurred!");}

Any and all help would be much appreciated, thank you!