https://hvwv.nl/include/jquery/domReady.js

1// add event cross browser
2function addEvent(elem, event, fn) {
3    if (elem.addEventListener) {
4        elem.addEventListener(event, fn, false);
5    } else {
6        elem.attachEvent("on" + event, function() {
7            // set the this pointer same as addEventListener when fn is called
8            return(fn.call(elem, window.event));   
9        });
10    }
11}
12
13
14var logs = [];
15var eventSet = false;
16var loaded = false;
17function log(str) {
18    
19    if (loaded) {
20        output(str);
21    } else {
22        logs.push(str);
23    }
24
25    function output(str) {
26        var o = document.getElementById("log");
27        var div = document.createElement("div");
28        div.appendChild(document.createTextNode(str));
29        o.appendChild(div);
30    }
31    
32    if (!eventSet) {
33        eventSet = true;
34        addEvent(window, "load", function() {
35            loaded = true;
36            for (var i = 0; i < logs.length; i++) {
37                output(logs[i]);
38            }
39            logs = [];
40        });
41    }    
42}
43
44(function(funcName, baseObj) {
45    // The public function name defaults to window.domReady
46    // but you can pass in your own object and own function name and those will be used
47    // if you want to put them in a different namespace
48    funcName = funcName || "domReady";
49    baseObj = baseObj || window;
50    var readyList = [];
51    var readyFired = false;
52    var readyEventHandlersInstalled = false;
53    
54    // call this when the document is ready
55    // this function protects itself against being called more than once
56    function ready() {
57        if (!readyFired) {
58            // this must be set to true before we start calling callbacks
59            readyFired = true;
60            for (var i = 0; i < readyList.length; i++) {
61                // if a callback here happens to add new ready handlers,
62                // the domReady() function will see that it already fired
63                // and will schedule the callback to run right after
64                // this event loop finishes so all handlers will still execute
65                // in order and no new ones will be added to the readyList
66                // while we are processing the list
67                readyList[i].fn.call(window, readyList[i].ctx);
68            }
69            // allow any closures held by these functions to free
70            readyList = [];
71        }
72    }
73    
74    function readyStateChange() {
75    if ( document.readyState === "complete" ) {
76            ready();
77        }
78    }
79    
80    // This is the one public interface
81    // domReady(fn, context);
82    // the context argument is optional - if present, it will be passed
83    // as an argument to the callback
84    baseObj[funcName] = function(callback, context) {
85        // if ready has already fired, then just schedule the callback
86        // to fire asynchronously, but right away
87        if (readyFired) {
88            setTimeout(function() {callback(context);}, 1);
89            return;
90        } else {
91            // add the function and context to the list
92            readyList.push({fn: callback, ctx: context});
93        }
94        // if document already ready to go, schedule the ready function to run
95        if (document.readyState === "complete") {
96            setTimeout(ready, 1);
97        } else if (!readyEventHandlersInstalled) {
98            // otherwise if we don't have event handlers installed, install them
99            if (document.addEventListener) {
100                // first choice is DOMContentLoaded event
101                document.addEventListener("DOMContentLoaded", ready, false);
102                // backup is window load event
103                window.addEventListener("load", ready, false);
104            } else {
105                // must be IE
106                document.attachEvent("onreadystatechange", readyStateChange);
107                window.attachEvent("onload", ready);
108            }
109            readyEventHandlersInstalled = true;
110        }
111    }
112})("domReady", window);
113
114function confirm_link(message, url) {
115    if(confirm(message)) location.href = url;
116}
117
118
119/**
120 * 
121// test basic functionality
122domReady(function() {
123    document.body.appendChild(document.createTextNode("Hello Text 1"));
124    // test adding new domReady handler from a domReady callback
125    domReady(function() {
126        document.body.appendChild(document.createTextNode(", Hello Text 2"));
127    });
128});
129
130// test finding an ID in the document
131domReady(function() {
132    document.getElementById("test").innerHTML = "Hello ID";
133});
134
135// test calling domReady after window load and
136// domReady has already fired
137addEvent(window, "load", function() {
138    setTimeout(function() {
139    document.body.appendChild(document.createTextNode(", Hello Text 2.5"));
140        
141        domReady(function(arg) {
142            document.body.appendChild(document.createTextNode(arg));
143        }, ", Hello Text 3");
144    }, 1);
145});
146})();
147 */