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function MenuItem(parentDisplay)

{

    this.parentDisplay = parentDisplay;

    this.displayData = new Array();

}

/* the display object who created the menu item */

MenuItem.prototype.parentDisplay = null;

/* the data to display for this item, may be updated before sent to display via the doUpdate function */

MenuItem.prototype.displayData = null;

/* function to call when this menu item is active and left is choosen */

MenuItem.prototype.doLeft = null;

/* function to call when this menu item is active and right is choosen */

MenuItem.prototype.doRight = null;

/* function to call when this menu item is active and button is pressed */

MenuItem.prototype.doPress = null;

/* function to call before this menu item is displayed */

MenuItem.prototype.doUpdate = null;

/* what MenuItem is previous item, if used */

MenuItem.prototype.nextItem = null;

/* what MenuItem is next item, if used */

MenuItem.prototype.prevItem = null;

/* what MenuItem to descend to, if used */

MenuItem.prototype.descItem = null;

MenuItem.prototype.setNextItem = function (nextItem)

{

    this.nextItem = nextItem;

}

MenuItem.prototype.setPrevItem = function (prevItem)

{

    this.prevItem = prevItem;

}

MenuItem.prototype.setDescItem = function (descItem)

{

    this.descItem = descItem;

}