修改 iOS 跳转方式

@@ -11,15 +11,19 @@ var qrCheck = {
 
     init: function() {
         var ifr,
-
-            // time,
-            qr = this.getQuery('qr');
+            u = navigator.userAgent.toLowerCase(),
+        isiOS = u.indexOf('os') > -1 || u.indexOf('iphone') > -1 || u.indexOf('mac') > -1 || u.indexOf('ipad') > -1,
+        qr = this.getQuery('qr');
 
         if (qr) {
-            ifr = document.createElement('iframe');
-            ifr.src = 'yohobuy://http://m.yohobuy.com/signin.html?qr=' + qr;
-            ifr.style.display = 'none';
-            document.body.appendChild(ifr);
+            if (isiOS) {
+                window.location = 'yohobuy://http://m.yohobuy.com/signin.html?qr=' + qr;
+            } else {
+                ifr = document.createElement('iframe');
+                ifr.src = 'yohobuy://http://m.yohobuy.com/signin.html?qr=' + qr;
+                ifr.style.display = 'none';
+                document.body.appendChild(ifr);
+            }
 
             // time = Date.now();
             // window.setTimeout(function() {