image_list = Array();

function PreloadImages() {
	image_list['nav1_home'] = Array();
	image_list['nav1_home']['on'] = new Image(); 		image_list['nav1_home']['on'].src = 'images/nav1_home_on.gif';
	image_list['nav1_home']['off'] = new Image();		image_list['nav1_home']['off'].src = 'images/nav1_home_off.gif';
	
	image_list['nav1_products'] = Array();
	image_list['nav1_products']['on'] = new Image();	image_list['nav1_products']['on'].src = 'images/nav1_products_on.gif';
	image_list['nav1_products']['off'] = new Image();	image_list['nav1_products']['off'].src = 'images/nav1_products_off.gif';
	
	image_list['nav1_news'] = Array();
	image_list['nav1_news']['on'] = new Image();		image_list['nav1_news']['on'].src = 'images/nav1_news_on.gif';
	image_list['nav1_news']['off'] = new Image();		image_list['nav1_news']['off'].src = 'images/nav1_news_off.gif';
	
	image_list['nav1_quote'] = Array();
	image_list['nav1_quote']['on'] = new Image();		image_list['nav1_quote']['on'].src = 'images/nav1_quote_on.gif';
	image_list['nav1_quote']['off'] = new Image();		image_list['nav1_quote']['off'].src = 'images/nav1_quote_off.gif';
	
	image_list['nav1_team'] = Array();
	image_list['nav1_team']['on'] = new Image();		image_list['nav1_team']['on'].src = 'images/nav1_team_on.gif';
	image_list['nav1_team']['off'] = new Image();		image_list['nav1_team']['off'].src = 'images/nav1_team_off.gif';
	
	image_list['nav1_about'] = Array();
	image_list['nav1_about']['on'] = new Image();		image_list['nav1_about']['on'].src = 'images/nav1_about_on.gif';
	image_list['nav1_about']['off'] = new Image();		image_list['nav1_about']['off'].src = 'images/nav1_about_off.gif';
	
	image_list['nav1_faq'] = Array();
	image_list['nav1_faq']['on'] = new Image();			image_list['nav1_faq']['on'].src = 'images/nav1_faq_on.gif';
	image_list['nav1_faq']['off'] = new Image();		image_list['nav1_faq']['off'].src = 'images/nav1_faq_off.gif';
	
	image_list['nav1_service'] = Array();
	image_list['nav1_service']['on'] = new Image();		image_list['nav1_service']['on'].src = 'images/nav1_service_on.gif';
	image_list['nav1_service']['off'] = new Image();	image_list['nav1_service']['off'].src = 'images/nav1_service_off.gif';
	
	image_list['nav1_employ'] = Array();
	image_list['nav1_employ']['on'] = new Image();		image_list['nav1_employ']['on'].src = 'images/nav1_employ_on.gif';
	image_list['nav1_employ']['off'] = new Image();		image_list['nav1_employ']['off'].src = 'images/nav1_employ_off.gif';
	
	image_list['nav1_contact'] = Array();
	image_list['nav1_contact']['on'] = new Image();		image_list['nav1_contact']['on'].src = 'images/nav1_contact_on.gif';
	image_list['nav1_contact']['off'] = new Image();	image_list['nav1_contact']['off'].src = 'images/nav1_contact_off.gif';
}

function mouseOver(menu_item, on_off) {
	if(on_off) {
		menu_item.src = image_list[menu_item.name]['on'].src;
	} else {
		menu_item.src = image_list[menu_item.name]['off'].src;
	}
}