function preloadImages(imgs){
	
	var picArr = [];
	
		for (i = 0; i<imgs.length; i++){
			
				picArr[i]= new Image(100,100); 
				picArr[i].src=imgs[i]; 

			
			}
	
	}
	
	preloadImages([
		'../images/btn-prev-hover.png', 
		'../images/btn-next-hover.png', 
		'../images/submenu-hover.png', 
		'../images/menu-hover.png',
		'../images/more-hover.png',
		'../images/prev-hover.png',
		'../images/next-hover.png',
		'../images/down-hover.png',
		'../images/up-hover.png']);