if (document.images) {
  fpimage1on = new Image();
  fpimage1on.src = "images/but_searchon.gif";

  fpimage1off = new Image();
  fpimage1off.src = "images/but_search.gif";
  
  fpimage2on = new Image();
  fpimage2on.src = "images/but_browseon.gif";

  fpimage2off = new Image();
  fpimage2off.src = "images/but_browse.gif";
  
  fpimage3on = new Image();
  fpimage3on.src = "images/but_contacton.gif";

  fpimage3off = new Image();
  fpimage3off.src = "images/but_contact.gif";
  
  fpimage4on = new Image();
  fpimage4on.src = "images/but_redeemvouchon.gif";

  fpimage4off = new Image();
  fpimage4off.src = "images/but_redeemvouch.gif";  
  
  fpimage5off = new Image();
  fpimage5off.src = "images/searching.gif";  
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}
function showCal () {
	document.getElementById('calendar').style.display = 'block';
}