//show and hide and preload for main menu

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) {
		menu_bar_03_over = newImage("images/menu_bar_03-over.gif");
		menu_bar_04_over = newImage("images/menu_bar_04-over.gif");
		menu_bar_05_over = newImage("images/menu_bar_05-over.gif");
		menu_bar_06_over = newImage("images/menu_bar_06-over.gif");
		menu_bar_07_over = newImage("images/menu_bar_07-over.gif");
		menu_bar_09_over = newImage("images/menu_bar_09-over.gif");
		menu_bar_04_over = newImage("images/menu_bar_d_04-over.gif");
		menu_bar_05_over = newImage("images/menu_bar_d_05-over.gif");
		menu_bar_06_over = newImage("images/menu_bar_d_06-over.gif");
		menu_bar_07_over = newImage("images/menu_bar_d_07-over.gif");
		menu_bar_05_over = newImage("images/menu_bar_f_05-over.gif");
		menu_bar_06_over = newImage("images/menu_bar_f_06-over.gif");
		menu_bar_07_over = newImage("images/menu_bar_f_07-over.gif");
		menu_bar_04_over = newImage("images/menu_bar_g_04-over.gif");
		menu_bar_05_over = newImage("images/menu_bar_g_05-over.gif");
		menu_bar_06_over = newImage("images/menu_bar_g_06-over.gif");
		menu_bar_07_over = newImage("images/menu_bar_g_07-over.gif");
		menu_bar_04_over = newImage("images/menu_bar_i_04-over.gif");
		menu_bar_05_over = newImage("images/menu_bar_i_05-over.gif");
		menu_bar_06_over = newImage("images/menu_bar_i_06-over.gif");
		menu_bar_07_over = newImage("images/menu_bar_i_07-over.gif");
		preloadFlag = true;
	}
}

/*show and hide for expandable menu
menu_status = new Array();
function showHide(theid){
if (document.getElementById) {
var switch_id = document.getElementById(theid);

if(menu_status[theid] != 'show') {
 switch_id.className = 'show';
 menu_status[theid] = 'show';
 }else{
 switch_id.className = 'hide';
 menu_status[theid] = 'hide';
 }
 }
 }
*/