/*====================================================================================================
//////////////////////////////////////////////////////////////////////////////////////////////////////

 Author : http://www.yomotsu.net
 Licensed under the GNU Lesser General Public License version 2.1
 
 ページの先頭へスクロールさせるスクリプト

//////////////////////////////////////////////////////////////////////////////////////////////////////
====================================================================================================*/

var backToTop = {
conf : {
topFlag : "#header"
},
main : function () {
var x1 = x2 = x3 = 0;
var y1 = y2 = y3 = 0;
if (document.documentElement) {
x1 = document.documentElement.scrollLeft || 0;
y1 = document.documentElement.scrollTop || 0;
}
if (document.body) {
x2 = document.body.scrollLeft || 0;
y2 = document.body.scrollTop || 0;
}
x3 = window.scrollX || 0;
y3 = window.scrollY || 0;
var x = Math.max(x1, Math.max(x2, x3));
var y = Math.max(y1, Math.max(y2, y3));
window.scrollTo(Math.floor(x / 1.3), Math.floor(y / 1.3));
if (x > 0 || y > 0) {
window.setTimeout("backToTop.main()", 15);
}
else if (navigator.userAgent.indexOf("AppleWebKit") == -1){
location.href = backToTop.conf.topFlag;
}	},
set : function () {
var a = document.links;
for(i=0;i<a .length;i++){
if(new RegExp(backToTop.conf.topFlag + "\\b").exec(a[i].href)) {
a[i].onclick = function(){
this.removeAttribute("href")
backToTop.main();
this.setAttribute("href",backToTop.conf.topFlag);
return false;
}
}
}
},
addEvent : function(){
try {
window.addEventListener('load', backToTop.set, false);
} catch (e) {
window.attachEvent('onload', backToTop.set);
}
}
}
backToTop.addEvent();

//ロールオーバー （img.over）
function initRollOverImages() {
	var image_cache = new Object();
	$("img.over").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);