$(function(){
	var image_cache = new Object();
	$(".roll a img").not("[src*='_o.']").each(function(i) {
		var imgsrc = this.src;
		var dot = this.src.lastIndexOf('.');
		var imgsrc_on = this.src.substr(0, dot) + '_o' + this.src.substr(dot, 4);
		image_cache[this.src] = new Image();
		image_cache[this.src].src = imgsrc_on;
		$(this).hover(
			function() { this.src = imgsrc_on; },
			function() { this.src = imgsrc; }
		);
	});
  $("img.thumbnail").toggle(
    function(){
      src = $(this).attr("src");
			src2 = src.replace("_tm.",".");
			$(this).attr("src",src2);
      $(this).css("z-index","2");
			$(this).animate({width:"360px", height:"270px"},"slow");
		},
		function(){
      src2 = $(this).attr("src");
			src = src2.replace(".","_tm.");
			$(this).animate({width:"180px", height:"135px"},"slow");
      $(this).css("z-inde","0");
			$(this).attr("src",src);
		}
	);
  $("p.up-nav a").click(function(){
		$("html,body").scrollTo({top:0,left:0},800);
		return false;
	});
});