function moveleft(){

 for(i=1;i<14;i++){
move[i]=move[i]-3
var randomnum1 = Math.floor(820*Math.random())+1;
var randomnum2 = Math.floor(1500*Math.random())+1280;
document.getElementById(i).style.left= move[i]
if (move[i]<0-45){
document.getElementById(i).style.top= randomnum1
move[i]=randomnum2
}

}
setTimeout("moveleft();",1);
}