···

       
108
       
 
       
else

     

       
109
       
 
       
    window.attachEvent("onmessage", saveCaller);

     

       
110
       
 
       


     

       
111
       
-
       
function onload() {

     

       
112
       
-
       
    if (arguments.callee.done)

     

       
113
       
-
       
        return;

     

       
114
       
-
       
    arguments.callee.done = true;

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
115
       
 
       


     

       
116
       
-
       
    if (_timer)

     

       
117
       
-
       
        clearInterval(_timer);

     

       
118
       
-
       


     

       
119
       
-
       
    loaded = true;

     

       
120
       
-
       
    if (caller)

     

       
121
       
-
       
        sendResponse();

     

       
122
       
-
       
}

     

       
123
       
 
       


     

       
124
       
-
       
if (document.addEventListener)

     

       
125
       
-
       
    document.addEventListener("DOMContentLoaded", onload, false);

     

       
126
       
-
       
else if (/WebKit/i.test(navigator.userAgent)) {

     

       
127
       
-
       
    _timer = setInterval(function() {

     

       
128
       
-
       
        if (/loaded|complete/.test(document.readyState))

     

       
129
       
-
       
            onload();

     

       
130
       
-
       
    }, 10);

     

       
131
       
 
       
}

     

       
132
       
-
       
else

     

       
133
       
-
       
    window.onload = onload;

     

       
134
       
 
       


     

       
135
       
 
       
function sendResponse() {

     

       
136
       
-
       
    if (caller.data.query == "height") {

     

       
137
       
-
       
        setTimeout(function() {

     

       
138
       
-
       
            caller.source.postMessage({ element: caller.data.element,

     

       
139
       
-
       
                height: document.body.scrollHeight + 20 }, caller.origin);

     

       
140
       
-
       
        }, 500);

     

       
141
       
-
       
    }

     

       
142
       
 
       
};

     

       
143
       
 
       
</script>

     

       
144
       
 
       
</html>

     

···

       
108
       
 
       
else

     

       
109
       
 
       
    window.attachEvent("onmessage", saveCaller);

     

       
110
       
 
       


     

       
111
       
+
       
var lastHeight = 0;

     

       
112
       
+
       
var loadedTime = window.performance ? window.performance.now() : 0;

     

       
113
       
+
       
function checkHeight() {

     

       
114
       
+
       
	if (document.body.scrollHeight != lastHeight && caller) {

     

       
115
       
+
       
		lastHeight = document.body.scrollHeight;

     

       
116
       
+
       
		sendResponse();

     

       
117
       
+
       
	}

     

       
118
       
 
       


     

       
119
       
+
       
	/* give up after a while to save cpu */

     

       
120
       
+
       
	if (window.performance &&

     

       
121
       
+
       
	  (window.performance.now() - loadedTime > (10 * 1000)))

     

       
122
       
+
       
		return;

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
123
       
 
       


     

       
124
       
+
       
	window.requestAnimationFrame(checkHeight);

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
125
       
 
       
}

     

       
126
       
+
       
window.requestAnimationFrame(checkHeight);

     

       
0
       
 
       

     

       
127
       
 
       


     

       
128
       
 
       
function sendResponse() {

     

       
129
       
+
       
	if (caller.data.query == "height")

     

       
130
       
+
       
		caller.source.postMessage({ element: caller.data.element,

     

       
131
       
+
       
			height: document.body.scrollHeight + 20 }, caller.origin);

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
132
       
 
       
};

     

       
133
       
 
       
</script>

     

       
134
       
 
       
</html>