if (document.images) {
		
		if(!rootPath) var rootPath = '';
		
		var menu01on = new Image()
		menu01on.src = rootPath + "images/menus/on/lmenu_01.png"
		var menu01off = new Image() 
		menu01off.src = rootPath + "images/menus/off/lmenu01.png"

		var menu02on = new Image()
		menu02on.src = rootPath + "images/menus/on/lmenu_02.png"
		var menu02off = new Image() 
		menu02off.src = rootPath + "images/menus/off/lmenu02.png"

		var menu03on = new Image()
		menu03on.src = rootPath + "images/menus/on/lmenu_03.png"
		var menu03off = new Image() 
		menu03off.src = rootPath + "images/menus/off/lmenu03.png"

		var menu04on = new Image()
		menu04on.src = rootPath + "images/menus/on/lmenu_04.png"
		var menu04off = new Image() 
		menu04off.src = rootPath + "images/menus/off/lmenu04.png"
	}

function inact(imgName) {
	if (document.images)
    document[imgName].src = eval(imgName + 'off.src');
}

function act(imgName) {
  if (document.images)
    document[imgName].src = eval(imgName + 'on.src');
}