function newImage(arg) {
 if (document.images) {
  rslt = new Image();
  rslt.src = arg;
  return rslt;
 }
};

function preloadImages() {
 if (document.images) {
  id0 = newImage("images/mm_bg.gif");
 }
};

function erase (form) {
 for(i = 0; i < form.length; i++)
  if (form.elements[i].type == "text" || form.elements[i].type == "textarea")
  form.elements[i].value = "";
};