I need to create a pop-up that initiates as soon as a user clicks on a web map, or accesses the link from another location. The map is an ArcGIS Server out-of-the-box .net app. It's for a disclaimer and just needs an accept and do not accept button. I could do it easily enough if it were Flex or Silverlight, but I'm at a loss here.
Use the MapClick (double click on the map) or PreRender event of the Map Component: