Take a look at how different libraries such as Dojo and ExtJS handle script dependencies to gather some inspiration. They utilize functions like require() to fetch necessary scripts dynamically while avoiding unnecessary duplicate loads. By defining events to manage load dependencies, they streamline the initialization process by signaling when certain elements are ready, allowing other libraries to initialize accordingly.

When multiple developers are working on the same codebase, utilizing the HTML/DOM as a common contract can promote cohesion. By using selectors instead of inline events, different libraries can easily interact with shared elements without the need for constant coordination.

For instance, creating a calendar control that responds to a specific CSS class instead of binding inline events enables other libraries to work alongside it seamlessly. Offering events for other developers to leverage enhances collaboration and promotes cleaner code writing practices.

Implementing singleton methods, like Calendar.getCalendars(), can also contribute to smoother teamwork by preventing duplicate methods and ensuring consistency in the codebase. This approach minimizes potential conflicts and maintains the flexibility of the shared application.

Considering the unique setup of your environment, a suggested approach would be to divide the script into separate segments. Specific code tailored for individual pages or functions should be placed in their own Javascript files.

Furthermore, adhering to good naming conventions and standards is key.

Lastly, thorough documentation is crucial. When changes occur on a page, referring to the documentation should indicate which scripts may be impacted. Similarly, the documentation should outline the purpose of each script on various pages.

While this may not directly address your initial query, it will undoubtedly simplify maintenance in the long term, especially in collaborative projects.

Regarding maintainable code, consistent naming conventions are again emphasized. This applies to both HTML and Javascript components. Additionally, JavaScript variables and functions should closely mirror the corresponding HTML elements. For instance, if a form is labeled id="banana", avoid naming the variable related to it as "apple".

At this moment, a thought crossed my mind which I am seeking assistance with. It involves the efficient organization of method calls within various modules, all triggered by a single 'ready' event. The question arises - what should be the order of calling modules if one module depends on another?

// Definition of module organizer
var modules = (function(){

    var level_0 = new Array();
    var level_1 = new Array();
    var level_2 = new Array();

    return {
        add: function(method, level){
            var success = true;
            try{
                switch(level){
                    case 0:
                        level_0.push(method);
                        break;
                    case 1:
                        level_1.push(method);
                        break;
                    case 2:
                        level_2.push(method);
                        break;
                };
            }catch(ex){success=false;}
            return success;
        },
        callAll: function(){
            var success    = true;
            var success_0  = true;
            var success_1  = true;
            var success_2  = true;
            try{
                success_0 = this.call(0);
                success_1 = this.call(1);
                success_2 = this.call(2);
            }catch(ex){success=false;}
            return ((success && success_0 && success_1 && success_2) || false);
        },
        call: function(level){
            var success = true;
            var level_call = null;
            try{
                switch(level){
                    case 0:
                        level_call = level_0;
                        break;
                    case 1:
                        level_call = level_1;
                        break;
                    case 2:
                        level_call = level_2;
                        break;
                };

                if (level_call!=null)
                    for(xcall in level_call)
                        level_call[xcall].call();

            }catch(ex){success=false;}
            return success;
        }
    };
})();

// Initialize methods in different modules
modules.add(function(){alert("Method A in module/file at level 1");}, 1);
modules.add(function(){alert("Method B in module/file at level 1");}, 1);
modules.add(function(){alert("Method C in module/file at level 0");}, 0);
modules.add(function(){alert("Method D in module/file at level 0");}, 0);
modules.add(function(){alert("Method E in module/file at level 2");}, 2);
modules.add(function(){alert("Method F in module/file at level 2");}, 2);
modules.add(function(){alert("Method G in module/file at level 2");}, 2);
modules.add(function(){alert("Method H in module/file at level 0");}, 0);

// Trigger the 'ready' event
$(function(){
    // Call all modules
    modules.callAll();

    // OR

    // Call modules in a different order
    modules.call(0);
    modules.call(2);
    modules.call(1);
});

If you're in search of a valuable resource for mastering clean and efficient JavaScript coding, Douglas Crockford's book JavaScript: The Good Parts is highly recommended. This book offers a plethora of helpful insights, including tips on code structuring best practices.

When tackling projects that involve a significant amount of JavaScript, my approach typically involves creating a singular object to avoid cluttering the global namespace. This object is then divided into sub-objects that encapsulate different application data and functionalities. Here's a simple example:

var PandaApp = {};
PandaApp.setup = {};
PandaApp.setup.init = function init() {
  // perform a task
};
PandaApp.utils = {};
PandaApp.utils.showMessage = function showMessage(msg) {
  // utilize jQuery methods or similar
};

By adopting this method, I maintain a single global object containing all necessary data, and everything is neatly organized and accessible within the custom namespace structure I define.