var k;
imgprint = 1;
imgall = 5;
var ran = new Array(imgprint - 1);
function random_number(){
return Math.round(Math.random() * imgall);
}
function check(num){
	while(k != num){
		ran[num]=random_number();
		k = 0;
		for(a = 0; a < num; a ++){
			if(ran[a] != ran[num]){
				k ++
			}
		}
	}
}
ran[0]=random_number();
for(a = 1; a < imgprint; a ++){
	check(a);
}

img=new Array(imgall);

img[0] = "images/clip1.jpg";
img[1] = "images/clip2.jpg";
img[2] = "images/clip3.jpg";
img[3] = "images/clip4.jpg";
img[4] = "images/clip5.jpg";
img[5] = "images/clip6.jpg";

for(i = 0; i < imgprint; i ++){
	document.write('<div id="clip" style="background-image: url(' + img[ran[i]] + ');">'); 
	document.write('</div>');
}