pulsall = 10;


function puls(pos1) {
for ( var i=1; i<5; i++ ) {
for ( var ii=1; ii<pulsall; ii++ ) {
if ( i == pos1 ) {
document.getElementById('puls'+ii+''+i).style.display = 'block'
} else {
document.getElementById('puls'+ii+''+i).style.display = 'none'
}
}
}
var pos1 = pos1 + 1;
if ( pos1 > 4 ) var pos1 = 1
if ( pos1 == 2 ) { tim = 600 } else { tim = 200 }
t=setTimeout('puls('+pos1+')', tim);
}
puls(1);