function hidify_showify(e_table, e_img, alt_less, alt_more) {
   if(document.getElementById) {
	  var id_table = document.getElementById(e_table).style;
	  var id_img = document.getElementById(e_img);

	  //Set the object to table-cell if the browser is
	  //Firefox and block if it's anything else.
	  if(navigator.userAgent.indexOf("Firefox") != -1){
		 if(id_table.display == "table-cell") {
			id_table.display = "none";
			id_img.src = "/images/arrow_down.gif";
			id_img.alt = alt_more;
		 }
		 else {
			id_table.display = "table-cell";
			id_img.src = "/images/arrow_up.gif";
			id_img.alt = alt_less;
		 }
	  }
	  else {
		 if(id_table.display == "block") {
			id_table.display = "none";
			id_img.src = "/images/arrow_down.gif";
			id_img.alt = alt_more;
		 }
		 else {
			id_table.display = "block";
			id_img.src = "/images/arrow_up.gif";
			id_img.alt = alt_less;
		 }
	  }
	  return false;
   }
   else {
	  return true;
   }
}