(function(doc) {var addEvent = 'addEventListener',type = 'gesturestart',qsa = 'querySelectorAll',scales = [1, 1],meta = qsa in doc ? doc[qsa]('meta[name=viewport]') : [];function fix() {meta.content = 'width=device-width,minimum-scale=' + scales[0] + ',maximum-scale=' + scales[1];doc.removeEventListener(type, fix, true);}if ((meta = meta[meta.length - 1]) && addEvent in doc) {fix();scales = [.25, 1.6];doc[addEvent](type, fix, true);}}(document));