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/list_img_marker1_act.jpg',
		'images/list_img_marker2_act.jpg',
		'images/list_img_marker3_act.jpg',
		'images/list_img_marker4_act.jpg',
		'images/list_img_marker5_act.jpg',
		'images/list_img_marker6_act.jpg',
		'images/flip_bottom1_left.gif',
		'images/flip_bottom1_right.gif'
		]);