Left click to show the pop-up menu, left/right click to hide it. Right click does not work in certain browsers that does not support document.oncontextmenu, e.g. Opera.

The main menu below is fixed positioned. It will remain visible when you scroll down.

The main menu below is absolutely positioned. It will move with the page when you scroll.

Source code for creating menus in this page:

function createjsDOMenu() {
  fixedMenu1 = new jsDOMenu(120, "fixed", "", true);
  with (fixedMenu1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "item3", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 5", "item5", "blank.htm"));
    moveTo(10, 150);
    show();
  }
  
  fixedMenu1_1 = new jsDOMenu(130, "fixed");
  with (fixedMenu1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "item2", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  fixedMenu1_2 = new jsDOMenu(120, "fixed");
  with (fixedMenu1_2) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "item3", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "item4", "blank.htm"));
  }
  
  fixedMenu1_1_1 = new jsDOMenu(150, "fixed");
  with (fixedMenu1_1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  fixedMenu1_2_1 = new jsDOMenu(140, "fixed");
  with (fixedMenu1_2_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  fixedMenu1_2_2 = new jsDOMenu(150, "fixed");
  with (fixedMenu1_2_2) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  fixedMenu1.items.item3.setSubMenu(fixedMenu1_1);
  fixedMenu1.items.item5.setSubMenu(fixedMenu1_2);
  fixedMenu1_1.items.item2.setSubMenu(fixedMenu1_1_1);
  fixedMenu1_2.items.item3.setSubMenu(fixedMenu1_2_1);
  fixedMenu1_2.items.item4.setSubMenu(fixedMenu1_2_2);
  
  absoluteMenu1 = new jsDOMenu(120, "absolute", "", true);
  with (absoluteMenu1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "item2", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "item5", "blank.htm"));
    moveTo(10, 440);
    show();
  }
  
  absoluteMenu1_1 = new jsDOMenu(130, "absolute");
  with (absoluteMenu1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "item3", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  absoluteMenu1_2 = new jsDOMenu(120, "absolute");
  with (absoluteMenu1_2) {
    addMenuItem(new menuItem("Item 1", "item1", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "item3", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  absoluteMenu1_1_1 = new jsDOMenu(150, "absolute");
  with (absoluteMenu1_1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  absoluteMenu1_2_1 = new jsDOMenu(140, "absolute");
  with (absoluteMenu1_2_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  absoluteMenu1_2_2 = new jsDOMenu(150, "absolute");
  with (absoluteMenu1_2_2) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  absoluteMenu1.items.item2.setSubMenu(absoluteMenu1_1);
  absoluteMenu1.items.item5.setSubMenu(absoluteMenu1_2);
  absoluteMenu1_1.items.item3.setSubMenu(absoluteMenu1_1_1);
  absoluteMenu1_2.items.item1.setSubMenu(absoluteMenu1_2_1);
  absoluteMenu1_2.items.item3.setSubMenu(absoluteMenu1_2_2);
  
  cursorMenu1 = new jsDOMenu(150);
  with (cursorMenu1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "item3", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  cursorMenu1_1 = new jsDOMenu(130);
  with (cursorMenu1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "item2", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "item4", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  cursorMenu1_1_1 = new jsDOMenu(160);
  with (cursorMenu1_1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  cursorMenu1_1_2 = new jsDOMenu(140);
  with (cursorMenu1_1_2) {
    addMenuItem(new menuItem("Item 1", "item1", "blank.htm"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "", "blank.htm"));
  }
  
  cursorMenu1_1_2_1 = new jsDOMenu(120);
  with (cursorMenu1_1_2_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
    addMenuItem(new menuItem("Item 5", "item5", "blank.htm"));
  }
  
  cursorMenu1_1_2_1_1 = new jsDOMenu(130);
  with (cursorMenu1_1_2_1_1) {
    addMenuItem(new menuItem("Item 1", "", "blank.htm"));
    addMenuItem(new menuItem("-"));
    addMenuItem(new menuItem("Item 2", "", "blank.htm"));
    addMenuItem(new menuItem("Item 3", "", "blank.htm"));
    addMenuItem(new menuItem("Item 4", "", "blank.htm"));
  }
  
  cursorMenu1.items.item3.setSubMenu(cursorMenu1_1);
  cursorMenu1_1.items.item2.setSubMenu(cursorMenu1_1_1);
  cursorMenu1_1.items.item4.setSubMenu(cursorMenu1_1_2);
  cursorMenu1_1_2.items.item1.setSubMenu(cursorMenu1_1_2_1);
  cursorMenu1_1_2_1.items.item5.setSubMenu(cursorMenu1_1_2_1_1);
  
  setPopUpMenu(cursorMenu1);
  activatePopUpMenuBy(0, 2);
}