this.markupDocumentViewer.textZoom = aZoom / 100; 
return (getBrowser().markupDocumentViewer.fullZoom = aVal); 
  set textZoom(aZoom) {    if (aZoom < this.MIN || aZoom > this.MAX)      throw Components.results.NS_ERROR_INVALID_ARG;    this.markupDocumentViewer.textZoom = aZoom / 100;  },
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/db7cd57c4ee083b474dffe689b52f577a52bb6f8/viewZoomOverlay.js/clean/toolkit/content/viewZoomOverlay.js