jQuery.preloadImages = function()
{
  for(var i = 0; i<arguments.length; i++)
  {
    jQuery("<img>").attr("src", arguments[i]);
  }
}

$.preloadImages("/images/home-.png", "/images/about-.png", "/images/health-.png", "/images/insurers-.png", "/images/contact-.png", "/images/hd-gaq-.png");