if(document.images)
{
  var image_array = new Array();
	
  // path to the directory with images
  var path = 'images/';

  // enumeration of the "active" images
  image_array[0] = path + "btn_home2.png";
  image_array[1] = path + "btn_services2.png";
  image_array[2] = path + "btn_benifits2.png";
  image_array[3] = path + "btn_pricing2.png";
  image_array[4] = path + "btn_affliations2.png";
  image_array[5] = path + "btn_purcs2.png";
  image_array[6] = path + "btn_coupons2.png";
  image_array[7] = path + "btn_locations2.png";
  image_array[8] = path + "btn_contact_us2.png";

  var preload_image = new Array ();
 
  for(var i=0; i<image_array.length; i++)
  {
    preload_image[i]= new Image();
    preload_image[i].src = image_array[i];
  }
}


function rollover(name, filename)
{
	var fullpath = 'images/' + filename;
	document.images[name].src = fullpath;
}