$(document).ready(function() {

	$('a.thumbnail')
		.click(function() {
			newSrc = $(this).attr('href');
	//		alert( $('img#mainimage').attr('src') );
			$('img#mainimage').attr('src', newSrc);
	//		alert( $('img#mainimage').attr('src') );
			return false;
		});
	
	$('a.thumbnail img')
		.hover(function() {
			newSrc = $(this).attr('src').replace("thumb.png", "thumbhov.png");
			$(this).attr('src', newSrc);
		}, function() {
			newSrc = $(this).attr('src').replace("thumbhov.png", "thumb.png");
			$(this).attr('src', newSrc);
		});

});

(function($) {
  var cache = [];
  // Arguments are image paths relative to the current page.
  $.preLoadImages = function() {
    var args_len = arguments.length;
    for (var i = args_len; i--;) {
      var cacheImage = document.createElement('img');
      cacheImage.src = arguments[i];
      cache.push(cacheImage);
    }
  }
})(jQuery)