在更新面板外部注入JavaScript

I have an aspx page with four UpdatePanels. Incidentally, each UpdatePanel corresponds to a JQuery UI tab. What I am trying to achieve is a JQuery UI modal dialog OUTSIDE the UpdatePanels that can be called from server-side code running INSIDE any of the UpdatePanels. So, inside the first UpdatePanel is an asp:Button which runs some server-side code. When an error ocurrs, I want to be able to inject some JavaScript that will call the modal dialog to display the error message. Here is the code I am using:I have an aspx page with four UpdatePanels. Inc