//// code for pop-up menus

// how it works:
//  When the mouse passes over one of the main navigation buttons, it calls
//   show_menu_exclusive() to swap the button image, open that button's pop-up menu,
//   and close any others that might be open.
//  When the mouse leaves the nav button, it starts a delayed restore of the button image
//   and closing of that pop-up menu by calling start_delayed_hide_menu(). The closing
//   is delayed because the mouse might be entering the pop-up menu. If not, then the menu
//   will either be closed by the delayed call to do_delayed_hide_menu(), or by entering
//   a different navigation button.
//  When the mouse enters a pop-up menu button, it cancels the delayed close of that
//   pop-up menu with cancel_delayed_hide_menu().
//  When the mouse leaves a pop-up menu button, it starts the delayed close.
//
//

//// globals

// set to true to swap the nav button that opens the menu, false otherwise
// the nav button name/id must be set to the menu name
var swapmenuopener = false;

// set the menu delay value in milliseconds
// 50 is about optimal
var menudelay = 50;

// variable records which menu is currently open
var open_menu = "";

// timer for delayed hide
var timerid = null;

//// functions

// show main nav mouseover and corresponding pop-up menu (immediately hide previous, if any)
//
function show_menu_exclusive(menuname) {

  if (timerid != null) {        // cancel any delayed hides
    clearTimeout (timerid);
    timerid = null;
  }

  if (open_menu == menuname)  // return if this menu already open
    return;

  if (open_menu != "") {      // restore main navigation button
    if (swapmenuopener) {
      // find image object
      var oldnavobj = MM_findObj(open_menu);
      // replace the original image
      if (oldnavobj != null) {
        if (oldnavobj.originalsrc) {
          oldnavobj.src = oldnavobj.originalsrc;
        }
      }
    }
    // hide the old pop-up menu
    var oldmenulayer = "menu" + open_menu;
    MM_showHideLayers(oldmenulayer,'','hide')
  }

  // swap in new menu button rollover and show pop-up menu

  if (menuname != "") {
    if (swapmenuopener) {
      // find image object
      var navobj = MM_findObj(menuname);
      if (navobj != null) {
        // get image src
        var src = navobj.src;
        // stash it for later replacement
        navobj.originalsrc = src;
        // replace ".gif" with "_hi.gif"
        // (but make sure we're not already showing _hi.gif)
        var i = src.lastIndexOf("_hi.gif");
        if (i < 0) {
          i = src.lastIndexOf(".gif");
          if (i >= 0) {
            src = src.substring(0,i)+"_hi.gif";
          }
        }
        // swap in highlighted image
        navobj.src = src;
      }
    }
    // show the new pop-up menu
    var menulayer = "menu" + menuname;
    MM_showHideLayers(menulayer,'','show')
  }

  // record the open menu
  open_menu = menuname;
}

// start delayed main nav image restoration and pop-up menu hiding
//
function start_delayed_hide_menu() {
  timerid = setTimeout("do_delayed_hide_menu()", menudelay); // last arg is delay in milliseconds
}

// cancel delayed main nav image restoration and pop-up menu hiding
//
function cancel_delayed_hide_menu() {
  if (timerid != null) {
    clearTimeout (timerid);
    timerid = null;
  }
}

// perform delayed main nav image restoration and pop-up menu hiding
//
function do_delayed_hide_menu() {
  show_menu_exclusive("");
}


//
// WRITE THE MENUS
//  Note: this uses site-relative links
//
function write_menus() {
  document.writeln("<div id=\"menuabout\"><a href=\"/williamsmystic/about/whatwedo.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m1whatwedo','','/williamsmystic/img/menus/m1whatwedo_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m1whatwedo.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m1whatwedo\" id=\"m1whatwedo\" /></a><br /><a href=\"/williamsmystic/about/whoweare.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m1whoweare','','/williamsmystic/img/menus/m1whoweare_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m1whoweare.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m1whoweare\" id=\"m1whoweare\" /></a></div>");
  
  document.writeln("<div id=\"menuadmissions\"><a href=\"/williamsmystic/admissions/howtoapply.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2howtoapply','','/williamsmystic/img/menus/m2howtoapply_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2howtoapply.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m2howtoapply\" id=\"m2howtoapply\" /></a><br /><a href=\"/williamsmystic/admissions/faqs.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2faqs','','/williamsmystic/img/menus/m2faqs_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2faqs.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m2faqs\" id=\"m2faqs\" /></a><br /><a href=\"/williamsmystic/admissions/fees.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2fees','','/williamsmystic/img/menus/m2fees_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2fees.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m2fees\" id=\"m2fees\" /></a><br /><a href=\"/williamsmystic/admissions/credit.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2credit','','/williamsmystic/img/menus/m2credit_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2credit.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"m2credit\" name=\"m2credit\" id=\"\" /></a><br /><a href=\"/williamsmystic/admissions/openhouse.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2openhouse','','/williamsmystic/img/menus/m2openhouse_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2openhouse.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m2openhouse\" id=\"m2openhouse\" /></a><br /><a href=\"/williamsmystic/admissions/afterwm.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2afterwm','','/williamsmystic/img/menus/m2afterwm_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2afterwm.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m2afterwm\" id=\"m2afterwm\" /></a><br /><a href=\"/williamsmystic/admissions/alumnispeak.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2alumnispeak','','/williamsmystic/img/menus/m2alumnispeak_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2alumnispeak.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m2alumnispeak\" id=\"m2alumnispeak\" /></a><br /><a href=\"/williamsmystic/admissions/requestinfo.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m2requestinfo','','/williamsmystic/img/menus/m2requestinfo_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m2requestinfo.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m2requestinfo\" id=\"m2requestinfo\" /></a></div>");
  
  document.writeln("<div id=\"menuacademics\"><a href=\"/williamsmystic/academics/courses.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3courses','','/williamsmystic/img/menus/m3courses_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3courses.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m3courses\" id=\"m3courses\" /></a><br /><a href=\"/williamsmystic/academics/calendar.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3calendar','','/williamsmystic/img/menus/m3calendar_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3calendar.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m3calendar\" id=\"m3calendar\" /></a><br /><a href=\"/williamsmystic/academics/faculty.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3faculty','','/williamsmystic/img/menus/m3faculty_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3faculty.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m3faculty\" id=\"m3faculty\" /></a><br /><a href=\"/williamsmystic/academics/links.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3links','','/williamsmystic/img/menus/m3links_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3links.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m3links\" id=\"m3links\" /></a><br /><a href=\"/williamsmystic/academics/graduate.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3graduate','','/williamsmystic/img/menus/m3graduate_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3graduate.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m3graduate\" id=\"m3graduate\" /></a><br /><a href=\"/williamsmystic/academics/summer.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m3summer','','/williamsmystic/img/menus/m3summer_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m3summer.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m3summer\" id=\"m3summer\" /></a></div>");
  
  document.writeln("<div id=\"menuexpeditions\"><a href=\"/williamsmystic/expeditions/overview.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m4overview','','/williamsmystic/img/menus/m4overview_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m4overview.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m4overview\" id=\"m4overview\" /></a><br /><a href=\"/williamsmystic/expeditions/offshore.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m4offshore','','/williamsmystic/img/menus/m4offshore_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m4offshore.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m4offshore\" id=\"m4offshore\" /></a><br /><a href=\"/williamsmystic/expeditions/pacific.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m4pacific','','/williamsmystic/img/menus/m4pacific_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m4pacific.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m4pacific\" id=\"m4pacific\" /></a><br /><a href=\"/williamsmystic/expeditions/delta.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m4delta','','/williamsmystic/img/menus/m4delta_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m4delta.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m4delta\" id=\"m4delta\" /></a></div>");
  
  document.writeln("<div id=\"menustudentlife\"><a href=\"/williamsmystic/studentlife/campus.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m5campus','','/williamsmystic/img/menus/m5campus_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m5campus.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m5campus\" id=\"m5campus\" /></a><br /><a href=\"/williamsmystic/studentlife/housing.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m5housing','','/williamsmystic/img/menus/m5housing_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m5housing.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m5housing\" id=\"m5housing\" /></a><br /><a href=\"/williamsmystic/studentlife/skills.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m5maritime','','/williamsmystic/img/menus/m5maritime_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m5maritime.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m5maritime\" id=\"m5maritime\" /></a><br /><a href=\"/williamsmystic/studentlife/mystic.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m5mystic','','/williamsmystic/img/menus/m5mystic_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m5mystic.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m5mystic\" id=\"m5mystic\" /></a><br /><a href=\"/williamsmystic/studentlife/day.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m5day','','/williamsmystic/img/menus/m5day_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m5day.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m5day\" id=\"m5day\" /></a></div>");
  
  document.writeln("<div id=\"menualumni\"><a href=\"http://wmalumni.williams.edu\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6alums','','/williamsmystic/img/menus/m6alums_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6alums.gif\" width=\"121\" height=\"23\" border=\"0\" alt=\"\" name=\"m6alums\" id=\"m6alums\" /></a><br /><a href=\"http://wmalumni.williams.edu/general/news.asp\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6latestnews','','/williamsmystic/img/menus/m6latestnews_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6latestnews.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m6latestnews\" id=\"m6latestnews\" /></a><br /><a href=\"http://wmalumni.williams.edu/events/event_list.asp\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6calendar','','/williamsmystic/img/menus/m6calendar_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6calendar.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m6calendar\" id=\"m6calendar\" /></a><br /><a href=\"http://wmalumni.williams.edu/donations\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6waystogive','','/williamsmystic/img/menus/m6waystogive_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6waystogive.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m6waystogive\" id=\"m6waystogive\" /></a><br /><a href=\"http://wmalumni.williams.edu/?CareerHome\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6jobs','','/williamsmystic/img/menus/m6jobs_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6jobs.gif\" width=\"121\" height=\"16\" border=\"0\" alt=\"\" name=\"m6jobs\" id=\"m6jobs\" /></a><br /><a href=\"/williamsmystic/alumni/memorabilia.html\" onMouseOver=\"cancel_delayed_hide_menu();MM_swapImage('m6memorabilia','','/williamsmystic/img/menus/m6memorabilia_hi.gif',1)\" onMouseOut=\"MM_swapImgRestore();start_delayed_hide_menu()\"><img src=\"/williamsmystic/img/menus/m6memorabilia.gif\" width=\"121\" height=\"21\" border=\"0\" alt=\"\" name=\"m6memorabilia\" id=\"m6memorabilia\" /></a></div>");
}

function preload_menu_mouseovers() {
  MM_preloadImages('/williamsmystic/img/menus/m1whatwedo.gif','/williamsmystic/img/menus/m1whoweare.gif','/williamsmystic/img/menus/m2howtoapply.gif','/williamsmystic/img/menus/m2faqs.gif','/williamsmystic/img/menus/m2fees.gif','/williamsmystic/img/menus/m2credit.gif','/williamsmystic/img/menus/m2openhouse.gif','/williamsmystic/img/menus/m2afterwm.gif','/williamsmystic/img/menus/m2alumnispeak.gif','/williamsmystic/img/menus/m2requestinfo.gif','/williamsmystic/img/menus/m3courses.gif','/williamsmystic/img/menus/m3faculty.gif','/williamsmystic/img/menus/m3calendar.gif','/williamsmystic/img/menus/m3links.gif','/williamsmystic/img/menus/m3graduate.gif','/williamsmystic/img/menus/m3summer.gif','/williamsmystic/img/menus/m4overview.gif','/williamsmystic/img/menus/m4offshore.gif','/williamsmystic/img/menus/m4pacific.gif','/williamsmystic/img/menus/m4delta.gif','/williamsmystic/img/menus/m5campus.gif','/williamsmystic/img/menus/m5housing.gif','/williamsmystic/img/menus/m5maritime.gif','/williamsmystic/img/menus/m5mystic.gif','/williamsmystic/img/menus/m5day.gif','/williamsmystic/img/menus/m6alums.gif','/williamsmystic/img/menus/m6latestnews.gif','/williamsmystic/img/menus/m6waystogive.gif','/williamsmystic/img/menus/m6jobs.gif','/williamsmystic/img/menus/m6calendar.gif','/williamsmystic/img/menus/m6memorabilia.gif');
}