var Images = new Array();
	for(i=0;i < 16;i++){
		Images[i] = './images/works/' + i + '.jpg';
	}
	function changeImage(){
		for(i=0;i< 3;i++){
			k = parseInt(Math.random() * Images.length);
			document.getElementById(i).src=Images[k];
			Images.splice(k,1);
		}
	}