function backToTop() {
    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 / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}

function setInquiry(){
	$('.inquiry').click(function(){
		var url = 'http://www.275.jp/form/index.html';
		var sh = Math.min(Math.floor(screen.height*0.9),600);
		var win = window.open(url,'','width=630,height='+sh+',scrollbars=yes,status=yes,resizeable=yes');
		win.focus();
		return false;
	});
}

$(function(){
	setInquiry();
});

function setRegister(){
	$('.register').click(function(){
		var url = 'https://scr.275.jp/cgi-bin/275magazine/registration.cgi';
		var sh = Math.min(Math.floor(screen.height*0.9),490);
		var win = window.open(url,'','width=630,height='+sh+',scrollbars=yes,status=yes,resizeable=yes');
		win.focus();
		return false;
	});
}

$(function(){
	setRegister();
});

function setDefection(){
	$('.defection').click(function(){
		var url = 'https://scr.275.jp/cgi-bin/275magazine/cancellation.cgi';
		var sh = Math.min(Math.floor(screen.height*0.9),650);
		var win = window.open(url,'','width=630,height='+sh+',scrollbars=yes,status=yes,resizeable=yes');
		win.focus();
		return false;
	});
}

$(function(){
	setDefection();
});

function initRollOverImages() {
  var image_cache = new Object();
  j$("img.swap").each(function(i) {
    var imgsrc = this.src;
    var dot = this.src.lastIndexOf('.');
    var imgsrc_on = this.src.substr(0, dot) + '_on' + this.src.substr(dot, 4);
    image_cache[this.src] = new Image();
    image_cache[this.src].src = imgsrc_on;
    j$(this).hover(
      function() { this.src = imgsrc_on; },
      function() { this.src = imgsrc; });
  });
}

j$(document).ready(initRollOverImages);