https://www.gongwer.com/programming/js/ajax.js

1var DivID;
2
3function ajaxObject(url, DivID) {
4    DivID = '#' + DivID;
5    $.get(url, function (data) {
6        $(DivID).html(data);
7    });
8}
9
10function positionForm(){
11	var curtop = 0;
12	var screenWidth = 0;
13	var screenHeight = 0;
14	var styleObject = getStyleObject(DivID);
15	var scrolledTo = f_scrollTop();
16	if (screen.height){
17		screenHeight = screen.height;
18	}
19	curtop = scrolledTo + (screenHeight * .15);
20	styleObject.top = curtop + "px";
21	if (screen.width) {
22		screenWidth = screen.width;
23		if (screenWidth < 1240) {
24			styleObject.left = "5%";
25			styleObject.width = "100%";
26		}
27	}
28}
29
30function f_clientWidth() {
31	return f_filterResults (
32		window.innerWidth ? window.innerWidth : 0,
33		document.documentElement ? document.documentElement.clientWidth : 0,
34		document.body ? document.body.clientWidth : 0
35	);
36}
37function f_clientHeight() {
38	return f_filterResults (
39		window.innerHeight ? window.innerHeight : 0,
40		document.documentElement ? document.documentElement.clientHeight : 0,
41		document.body ? document.body.clientHeight : 0
42	);
43}
44function f_scrollLeft() {
45	return f_filterResults (
46		window.pageXOffset ? window.pageXOffset : 0,
47		document.documentElement ? document.documentElement.scrollLeft : 0,
48		document.body ? document.body.scrollLeft : 0
49	);
50}
51function f_scrollTop() {
52	return f_filterResults (
53		window.pageYOffset ? window.pageYOffset : 0,
54		document.documentElement ? document.documentElement.scrollTop : 0,
55		document.body ? document.body.scrollTop : 0
56	);
57}
58function f_filterResults(n_win, n_docel, n_body) {
59	var n_result = n_win ? n_win : 0;
60	if (n_docel && (!n_result || (n_result > n_docel)))
61		n_result = n_docel;
62	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
63}
64
65function showhide(layer_ref) {
66  var state = document.getElementById(layer_ref).style.display;
67  if (state == 'none') {
68    state = 'block';
69  }
70  else {
71    state = 'none';
72  }
73  changeVisible(layer_ref,state);
74}
75
76function changeVisible(objectID, newDisplay)
77  {
78  // first get the object's stylesheet
79  var styleObject = getStyleObject(objectID);
80  // then if we find a stylesheet, set its visibility
81  // as requested
82  if (styleObject) {
83    styleObject.display = newDisplay;
84    return true;
85    }
86   else {
87    return false;
88    }
89  }
90 
91 function getStyleObject(objectId) {
92  // checkW3C DOM, then MSIE 4, then NN 4.
93  if(document.getElementById && document.getElementById(objectId)) {
94    return document.getElementById(objectId).style;
95    }
96  else if (document.all && document.all(objectId)) {  
97    return document.all(objectId).style;
98    } 
99  else if (document.layers && document.layers[objectId]) { 
100    return document.layers[objectId];
101    }
102  else {
103    return false;
104    }
105  }