Conditional contents of an element based on an attribute. XSD

Hi

 

I am writing a XSD for a specified XML format. In my XML files I have an
element "Job" with an attribute "type". Based on the "type" attribute, I
want the contents of the "Job" element to differ. E.g.

 

<Job type="Normal">

            <El1>...</El1>

<El2>...</El2>

</Job>

<Job type="Boring">

            <El1>...</El1>

            <El2>...</El">

            <El3>...</El3>

</Job>

<Job type="Exiting">

            <El1>...</El1>

            <El2>...</El2>

            <El3>...</El3>

            <El4>...</El4>

</Job>

 

How do I specify this in my XSD?

 

Hope you guys can help!

 

Mads