function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
 
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
 
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		barra_menu_6_01_over = newImage("images/barra_menu-6_01-over.gif");
		barra_menu_6_02_over = newImage("images/barra_menu-6_02-over.gif");
		barra_menu_6_03_over = newImage("images/barra_menu-6_03-over.gif");
		barra_menu_6_04_over = newImage("images/barra_menu-6_04-over.gif");
		barra_menu_6_05_over = newImage("images/barra_menu-6_05-over.gif");
 
		barra_menu_6_en_01_over = newImage("images/barra_menu-6-en_01-over.gif");
		barra_menu_6_en_02_over = newImage("images/barra_menu-6-en_02-over.gif");
		barra_menu_6_en_03_over = newImage("images/barra_menu-6-en_03-over.gif");
		barra_menu_6_en_04_over = newImage("images/barra_menu-6-en_04-over.gif");
		barra_menu_6_en_05_over = newImage("images/barra_menu-6-en_05-over.gif");
 
		preloadFlag = true;
	}
}