// array of images 
var imgs = new Array(3); 
	imgs[0] = "./img/nettiajanvaraus_h.jpg"; 
    imgs[1] = "./img/ilmottaudu_h.jpg"; 
    imgs[2] = "./img/ajokaistacom_h.jpg"; 
	imgs[3] = "./img/kuvakoe_h.jpg"; 
  
// preload the images 
function preload() { 
	var tmp = null; 
	for (var j = 0; j < imgs.length; j++) { 
     tmp = imgs[j]; 
     imgs[j] = new Image(); 
     imgs[j].src = tmp; 
	} 
} 

void(preload());