var getParam = function (p){ return window.jsCore && jsCore.loaded && document.body[p] || 0;  }

Registry
   .put('PositionFixedStyleSheets_p-fixed-0-0', 1)
   .put('PositionFixedStyleSheets_p-fixed-0pr-0pr', 1)
   .put('PositionFixedStyleSheets_p-fixed-50pr-50pr', 1)
   .put('PositionFixedStyleSheets_p-fixed-100pr-100pr', 1)
;