$(document).ready(function() {
  $("#block-search-0 input.form-submit").css("background", "transparent url('/images/search.jpg') no-repeat top left");
  $("#block-search-0 input.form-submit").css("width", "32px");
  $("#block-search-0 input.form-submit").css("height", "32px");
  $("#block-search-0 input.form-submit").attr("value", " ");
})