https://www.bildarchiv-ostpreussen.de/js/sizes_jq.js?v=3

1//////////////////////////////////////////////////////////////////////////////
2// Requires   https://www.bildarchiv-ostpreussen.de/js/base.js
3//////////////////////////////////////////////////////////////////////////////
4
5// absTop(el)
6// absBottom(el)
7// getHeight(el)
8// getWidth(el)
9// getScrollbarsVisible()
10
11
12
13
14// Liefert die absolute obere Position eines Elementes zurueck:
15function absTop(el) {
16        if (!el) { return 0; }
17	var t = typeof el;
18	if (t.toLowerCase() == 'string') {
19		el = $('#'+el).get(0);
20	}
21        return _absTop(el);
22}
23function _absTop(el) {
24        if (el == null) { return 0; }
25        return (el.offsetParent)? el.offsetTop+_absTop(el.offsetParent) : el.offsetTop;
26}
27function absBottom(el) {
28        if (!el) { return _getHeight(); }
29	var t = typeof el;
30	if (t.toLowerCase() == 'string') {
31		el = $('#'+el).get(0);
32	}
33        return _absTop(el) + _getHeight(el);
34}
35
36
37// Use getHeight() without parameter, if you want the viewport height of the browser:
38function getHeight(el) {
39	var t = typeof el;
40	if (t.toLowerCase() == 'string') {
41		el = $('#'+el).get(0);
42	}
43        return _getHeight(el);
44}
45function _getHeight(el) {
46        if (!el) {
47                if( typeof( window.innerHeight ) == 'number' ) {
48                        //Non-IE
49                        return window.innerHeight;
50                } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
51                        //IE 6+ in 'standards compliant mode'
52                        return document.documentElement.clientHeight;
53                } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
54                        //IE 4 compatible
55                        return document.body.clientHeight;
56                }
57                return 0;
58        }
59
60        if( typeof( el.offsetHeight ) == 'number' ) {
61                //Non-IE
62                return el.offsetHeight;
63        } else if( el.clientHeight ) {
64                return el.clientHeight;
65        }
66        return 0;
67}
68
69// Use getWidth() without parameter, if you want the viewport width of the browser:
70function getWidth(el) {
71	var t = typeof el;
72	if (t.toLowerCase() == 'string') {
73		el = $('#'+el).get(0);
74	}
75        return _getWidth(el);
76}
77function _getWidth(el) {
78        if (!el) {
79                if( typeof( window.innerWidth ) == 'number' ) {
80                        //Non-IE
81                        return window.innerWidth;
82                } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
83                        //IE 6+ in 'standards compliant mode'
84                        return document.documentElement.clientWidth;
85                } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
86                        //IE 4 compatible
87                        return document.body.clientWidth;
88                }
89                return 0;
90        }
91
92        if( typeof( el.offsetWidth ) == 'number' ) {
93                //Non-IE
94                return el.offsetWidth;
95        } else if( document.documentElement.clientWidth || document.documentElement.clientHeight ) {
96                return el.clientWidth;
97        }
98        return 0;
99}
100
101// Does not really work:
102function getScrollbarsVisible() {
103        if (window.innerHeight && window.document.height) {
104                return window.innerHeight != window.document.height;
105        }
106        if(document.body && document.body.clientHeight) {
107                return document.body.clientHeight != document.body.scrollHeight;
108        }
109        return self.innerHeight != self.document.height;
110}