Setting some element widths, disabling a button, and initializing some date fields
Since your code is all the same, you can dynamically create your selector:

...

$( '#0LevelId,#1LevelId,#3LevelId' ).change( function(){
    ...
    $( '#' + this.id.substr( 0, 1 ) + 'EffectiveDate' )...
} );