// JavaScript Document
   
    //main function that writes the menus
    function main(){
    about.writeMenu();
    faculty.writeMenu();
    graduate.writeMenu();
    undergraduate.writeMenu();
    events.writeMenu();
    program.writeMenu();
    
    }
    

    
    
    //add an item to the menu
    //addItem(link, imageOn, imageOff, additional onFunction, additional offFunction)
    about.addItem(""+baseDir+"about/index.html",""+baseDir+"images/nav/w0371_2_1_o.gif",""+baseDir+"images/nav/w0371_2_1.gif","imgOn('aboutImg')","imgOff('aboutImg')");
            about.addItem(""+baseDir+"about/s2_2.html",""+baseDir+"images/nav/w0371_2_2_o.gif",""+baseDir+"images/nav/w0371_2_2.gif","imgOn('aboutImg')","imgOff('aboutImg')");
            about.addItem(""+baseDir+"about/s2_3.html",""+baseDir+"images/nav/w0371_2_3_o.gif",""+baseDir+"images/nav/w0371_2_3.gif","imgOn('aboutImg')","imgOff('aboutImg')");
            about.addItem(""+baseDir+"about/s2_4.html",""+baseDir+"images/nav/w0371_2_4_o.gif",""+baseDir+"images/nav/w0371_2_4.gif","imgOn('aboutImg')","imgOff('aboutImg')");
            about.addItem(""+baseDir+"computing/",""+baseDir+"images/nav/w0371_2_5_o.gif",""+baseDir+"images/nav/w0371_2_5.gif","imgOn('aboutImg')","imgOff('aboutImg')");
            faculty.addItem(""+baseDir+"faculty/index.html",""+baseDir+"images/nav/w0371_3_1_o.gif",""+baseDir+"images/nav/w0371_3_1.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_2.html",""+baseDir+"images/nav/w0371_3_2_o.gif",""+baseDir+"images/nav/w0371_3_2.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_8.html",""+baseDir+"images/nav/w0371_3_8_o.gif",""+baseDir+"images/nav/w0371_3_8.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_3.html",""+baseDir+"images/nav/w0371_3_3_o.gif",""+baseDir+"images/nav/w0371_3_3.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_4.html",""+baseDir+"images/nav/w0371_3_4_o.gif",""+baseDir+"images/nav/w0371_3_4.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_5.html",""+baseDir+"images/nav/w0371_3_5_o.gif",""+baseDir+"images/nav/w0371_3_5.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem(""+baseDir+"faculty/s3_6.html",""+baseDir+"images/nav/w0371_3_6_o.gif",""+baseDir+"images/nav/w0371_3_6.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            faculty.addItem("https://www1.columbia.edu/sec/cu/economics/site/faculty/s3_7.html",""+baseDir+"images/nav/w0371_3_7_o.gif",""+baseDir+"images/nav/w0371_3_7.gif","imgOn('facultyImg')","imgOff('facultyImg')");
            graduate.addItem(""+baseDir+"graduate/index.html",""+baseDir+"images/nav/w0371_4_1_o.gif",""+baseDir+"images/nav/w0371_4_1.gif","","");
            graduate.addItem(""+baseDir+"graduate/s4_2.html",""+baseDir+"images/nav/w0371_4_2_o.gif",""+baseDir+"images/nav/w0371_4_2.gif","","");
            graduate.addItem(""+baseDir+"graduate/s4_3.html",""+baseDir+"images/nav/w0371_4_3_o.gif",""+baseDir+"images/nav/w0371_4_3.gif","","");
            graduate.addItem(""+baseDir+"graduate/s4_4.html",""+baseDir+"images/nav/w0371_4_4_o.gif",""+baseDir+"images/nav/w0371_4_4.gif","","");
            graduate.addItem(""+baseDir+"graduate/s4_5.html",""+baseDir+"images/nav/w0371_4_5_o.gif",""+baseDir+"images/nav/w0371_4_5.gif","","");
            graduate.addItem(""+baseDir+"graduate/s4_6.html",""+baseDir+"images/nav/w0371_4_6_o.gif",""+baseDir+"images/nav/w0371_4_6.gif","","");
            graduate.addItem("https://www1.columbia.edu/sec/cu/economics/site/graduate/s4_7.html",""+baseDir+"images/nav/w0371_4_7_o.gif",""+baseDir+"images/nav/w0371_4_7.gif","","");
            graduate.addItem("https://www1.columbia.edu/sec/cu/economics/site/graduate/s4_8.html",""+baseDir+"images/nav/w0371_4_8_o.gif",""+baseDir+"images/nav/w0371_4_8.gif","","");
            graduate.addItem("https://www1.columbia.edu/sec/cu/economics/site/graduate/s4_9.html",""+baseDir+"images/nav/w0371_4_9_o.gif",""+baseDir+"images/nav/w0371_4_9.gif","","");
            undergraduate.addItem(""+baseDir+"undergraduate/index.html",""+baseDir+"images/nav/w0371_5_1_o.gif",""+baseDir+"images/nav/w0371_5_1.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem(""+baseDir+"undergraduate/s5_2.html",""+baseDir+"images/nav/w0371_5_2_o.gif",""+baseDir+"images/nav/w0371_5_2.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem(""+baseDir+"undergraduate/s5_3_1.html",""+baseDir+"images/nav/w0371_5_3_o.gif",""+baseDir+"images/nav/w0371_5_3.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem(""+baseDir+"undergraduate/s5_4_1.html",""+baseDir+"images/nav/w0371_5_4_o.gif",""+baseDir+"images/nav/w0371_5_4.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem(""+baseDir+"undergraduate/s5_5_1.html",""+baseDir+"images/nav/w0371_5_5_o.gif",""+baseDir+"images/nav/w0371_5_5.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem("https://www1.columbia.edu/sec/cu/economics/site/undergraduate/s5_6_1.html",""+baseDir+"images/nav/w0371_5_6_o.gif",""+baseDir+"images/nav/w0371_5_6.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            undergraduate.addItem(""+baseDir+"undergraduate/s5_7.html",""+baseDir+"images/nav/w0371_5_7_o.gif",""+baseDir+"images/nav/w0371_5_7.gif","imgOn('undergraduateImg')","imgOff('undergraduateImg')");
            events.addItem(""+baseDir+"events/index.html",""+baseDir+"images/nav/w0371_6_1_o.gif",""+baseDir+"images/nav/w0371_6_1.gif","imgOn('eventsImg')","imgOff('eventsImg')");
            events.addItem(""+baseDir+"calendar/events.html?vt=list&ds=last%20sunday&de=R7",""+baseDir+"images/nav/w0371_6_2_o.gif",""+baseDir+"images/nav/w0371_6_2.gif","imgOn('eventsImg')","imgOff('eventsImg')");
            program.addItem(""+baseDir+"program/index.html",""+baseDir+"images/nav/w0371_7_1_o.gif",""+baseDir+"images/nav/w0371_7_1.gif","imgOn('programImg')","imgOff('programImg')");
            program.addItem(""+baseDir+"program/s7_5.html",""+baseDir+"images/nav/w0371_7_5_o.gif",""+baseDir+"images/nav/w0371_7_5.gif","imgOn('programImg')","imgOff('programImg')");
            program.addItem(""+baseDir+"program/s7_4.html",""+baseDir+"images/nav/w0371_7_4_o.gif",""+baseDir+"images/nav/w0371_7_4.gif","imgOn('programImg')","imgOff('programImg')");
            program.addItem(""+baseDir+"program/s7_3.html",""+baseDir+"images/nav/w0371_7_3_o.gif",""+baseDir+"images/nav/w0371_7_3.gif","imgOn('programImg')","imgOff('programImg')");
            program.addItem(""+baseDir+"program/s7_2.html",""+baseDir+"images/nav/w0371_7_2_o.gif",""+baseDir+"images/nav/w0371_7_2.gif","imgOn('programImg')","imgOff('programImg')");