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<?php
var viewportmeta = document.querySelector && document.querySelector('meta[name="viewport"]'),
ua = navigator.userAgent,
gestureStart = function () {
viewportmeta.content = "width=device-width, minimum-scale=0.25, maximum-scale=1.6";
},
scaleFix = function () {
if (viewportmeta && /iPhone|iPad/.test(ua) && !/Opera Mini/.test(ua)) {
viewportmeta.content = "width=device-width, minimum-scale=1.0, maximum-scale=1.0";
document.addEventListener("gesturestart", gestureStart, false);
}
};
scaleFix();
?>