rem: return;  if (aZoomFactor == zoomFactor) 
context:   function browserSetTextZoom(aZoomFactor) {    if (aZoomFactor < 1 || aZoomFactor > 5000)      return;    if (aZoomFactor == zoomFactor)      return;    zoomFactor = aZoomFactor;    if (isZoomFactorInRange(zoomFactor)) {      zoomLevel = findZoomLevel(zoomFactor);    } else {      zoomLevel = -1;    }    setTextZoom();    updateTextZoomMenu();  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/3a62cb0bbd26dd8a7afcd4f93d5865d168669ea5/navigator.js/buggy/xpfe/browser/resources/content/navigator.js