function migajacy_text(id, k1, t1, k2, t2){
  if (document.getElementById){
    document.getElementById(id).style.color = k1;
	setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }
  else if (document.all){
    		document.all[id].style.color = k1;
			setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }
}

function miganie() {
	migajacy_text("cena_miesiaca", "#FF0000", 800, "#666666", 800)
}