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| (function(document) { | |
| var metas = document.getElementsByTagName('meta'), | |
| changeViewportContent = function(content) { | |
| for (var i = 0; i < metas.length; i++) { | |
| if (metas[i].name == "viewport") { | |
| metas[i].content = content; | |
| } | |
| } | |
| }, | |
| initialize = function() { | |
| changeViewportContent("width=device-width, minimum-scale=1.0, maximum-scale=1.0"); | |
| }, | |
| gestureStart = function() { | |
| changeViewportContent("width=device-width, minimum-scale=0.25, maximum-scale=1.6"); | |
| }, | |
| gestureEnd = function() { | |
| initialize(); | |
| }; | |
| if (navigator.userAgent.match(/iPhone/i)) { | |
| initialize(); | |
| document.addEventListener("touchstart", gestureStart, false); | |
| document.addEventListener("touchend", gestureEnd, false); | |
| } | |
| })(document); |