// ロールオーバー関連
function initRollOverImages() { 
var image_cache = new Object();
$("img.hover").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; }  
);  
});  
}  
$(document).ready(initRollOverImages);

// analytics
  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-16915540-1']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();