I am working on a learning planner which gets its data (languagekeys, tasks, activities, etc.) from a database. Because I need a JSON string, I encode it with json_encode to work with it in JavaScript.
I have a different function (for keys, tasks, activities, etc.) which gets this data and writes it into an array.

function get_tasks(start_date,end_date){



    maxsubtasks=0;

    maxtasks=0;



    $.getJSON(json_data+?t_startdate=+start_date+&t_enddate=+end_date, function(data) {  



        tasks=new Array();



        $.each(data.tasks, function(i,item){



            tasks[i]= new Object();

            tasks[i][t_id]=item.t_id;

            tasks[i][t_title]=item.t_title;

            tasks[i][t_content]=item.t_content;

            . . .



            if ( i > data.tasks.length) return false;    

            maxtasks = data.tasks.length;

            if(item.t_parent > 0){

                maxsubtasks++;

            }

        });         

    });

    return true;

}

Everything is working just fine. I need some help, because I now have to call this function in $(document).ready(). I want to build my learning planner only once the function get_tasks() is complete (the array is filled with data). Otherwise, I will get errors.

How can this be solved?

Here is what I have in $(document).ready():

if(get_tasks(first_day,last_day) && get_tmp_data()){ // If this function is done

    // This function should be fired -- just like a callback in jQuery

    init_learnplanner();

}