// JavaScript Document

var pre_images = new Array();

preloadImages = function doPreloadImages() {
	
	for( var i = 1; i <= 6; i++ ) {
		preloadImg(i, '/public/site/images/submenu/'+ i +'.jpg');
		preloadImg(i + '_over', '/public/site/images/submenu/'+ i +'_over.jpg');		
	}
	
	preloadImg('bg_blue', '/public/site/images/sub_bg_blue.jpg');
	preloadImg('bg_blue_over', '/public/site/images/sub_bg_blue_over.jpg');
	
	preloadImg('bg_orange', '/public/site/images/sub_bg_orange.jpg');
	preloadImg('bg_orange_over', '/public/site/images/sub_bg_orange_over.jpg');	
	
	preloadImg('bg_grey', '/public/site/images/sub_bg_grey.jpg');
	preloadImg('bg_grey_over', '/public/site/images/sub_bg_grey_over.jpg');	
	
	preloadImg('bg_item', '/public/site/images/webshop_bg_item.jpg');
	preloadImg('bg_item_over', '/public/site/images/webshop_bg_item_over.jpg');	

	preloadImg('bg_title_blue', '/public/site/images/sub_title_blue.jpg');
	preloadImg('bg_title_orange', '/public/site/images/sub_title_orange.jpg');
	preloadImg('bg_title_grey', '/public/site/images/sub_title_grey.jpg');	
	
}

function preloadImg(key, src) {
	var img = new Image();
	img.src = src;
	
	pre_images[key] = img;
}

function changeImg(obj, key) {
	if(obj && pre_images && pre_images[key]) {
		obj.src = pre_images[key].src;
	}
}

function changeBg(obj, key) {
	if(obj && pre_images && pre_images[key]) {
		obj.style.backgroundImage = 'url(\''+ pre_images[key].src +'\')';		
	}	
}

addLoadEvent(preloadImages);