Jumping to a conditional page

[MSG]

From my first page's SHOW function I jump six pages forward, into a custom nsDialogs page. This custom page is a conditional one. Like this:

code:
Function MyCustomPage

  ${If} $MyVar == "ShowThePage"

    nsDialogs::Create 1018

    Pop $2

    nsDialogs::Show

  ${EndIf}

FunctionEnd

In the case that the page is NOT shown, the installer crashes. How can I jump into this conditional page properly?



(Note: Adding an ${Else} statement with a 'skip to next page' command is not a solution, because in that case you can't go Back from the following page.)