nl_tokens: Checks the current URL to see if it has changed and if it has calls loadUrl normalizing across the hidden iframe .
pl_tokens: function ( e ) { var history = S . History , current = history . getFragment ( ) ; if ( OLD_IE && current == history . fragment && <mask> . iframe ) current = history . getFragment ( history . getHash ( history . iframe ) ) ; if ( current == history . fragment ) return false ; if ( history . iframe ) history . navigate ( current ) ; history . loadUrl ( ) ; }