/*---------------------------------------------

Top Page Javascript

for www.tokyo-med.ac.jp/hmc/
coded by d-spica at 2008-09-19
linked to "index,html"

---------------------------------------------*/


$(function(){

var image_cache = new Object();
	$("#navigation dl a img").not("[@src*='-on.']").each(function(i) {
		var imgsrc = this.src;
		var dot = this.src.lastIndexOf('.');
		var imgsrc_on = this.src.substr(0, dot) + '-on' + 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; }
		);
	});
	
	$("#navigation ul li p").fadeTo("fast",0);
	$("#navigation ul li a").hover(
		function(){
			$("+ p",this).fadeTo("normal",0.75);
		},
		function(){
			$("+ p",this).fadeTo("normal",0);
		}
	);
});