Java EE (Java Enterprise Edition) General Discussion

I was wondering if you can help me with a problem i'm having with a h:commandLink tag. What I am trying to do is give the user a choice of executing the action or not by using the confirm() and click() javascript functions:

<h:commandLink id="runNowLink" styleClass="tableFooterText" value="#{ViewResources.RunNow}" action="#{Schedule.runNow}" onmouseup="if(confirm('#{ViewResources.RunNowConfirm}')) this.click()"/>

This works in IE, a dialog box with "ok" and "cancel" appears and depending on which option the user selects, the link is "clicked" or not. However, this does not work in firefox as the browser just goes through with the action regardless of the option selected. Can someone please help?