function MM_swapImgRestore() { //v3.0
    var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
    var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
    var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
    if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
    for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
    if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
    var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
    if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function go_pagetop() {
    scrollTo(0, 0);
    return false;
}

(function () {
    var d, spans;

    var fontsize = {
        normal: '1.4em',
        big:    '1.8em'
    };

    var init = function () {
        d     = document;
        spans = d.getElementById('ctrl_fontsize').getElementsByTagName('span');
        change_fontsize('normal');
        ctrl_fontsize();
    };

    var change_fontsize = function (size) {
        for (var span_index = 0, spans_length = spans.length; span_index < spans_length; span_index++) {
            var btn = spans[span_index].getElementsByTagName('img')[0];
            if (spans[span_index].className == size) {
                btn.src = btn.src.replace('_off.', '_on.');
            }
            else {
                btn.src = btn.src.replace('_on.', '_off.');
            }
        }

        d.getElementById('container').style.fontSize = fontsize[size];
    };

    var ctrl_fontsize = function () {
        for (var span_index = 0, spans_length = spans.length; span_index < spans_length; span_index++) {
            addEvent(spans[span_index],
                     'click',
                     _ctrl_fontsize(spans[span_index]));
        }
    };
				
    var _ctrl_fontsize = function (ele) {
        return function () {
            change_fontsize(ele.className);
        }
    };

    /* イベント登録 */
    var addEvent = function (element, event, func) {
        if (!!element.addEventListener) {
            element.addEventListener(event, func, false);
            return true;
        }
        else if (!!element.attachEvent) {
            var r = element.attachEvent('on' + event, func);
            return r;
        }
        else {
            element['on' + event] = func;
        }
    };

    addEvent(window, 'load', init);
})();


/* ロールオーバーイメージ */
(function(elements){var d=document;elements=elements||['img'];var image_rollover=function(){var rollover={src:function(src,regex,flg){var result=regex.exec(src);if(result){return(result[1]+flg+result[2]);}},func:function(regex,flg){return function(){var result=rollover.src(this.getAttribute('src'),regex,flg);if(result){this.setAttribute('src',result);}}}};for(var element_index=0,elements_length=elements.length;element_index<elements_length;element_index++){var images=document.getElementsByTagName(elements[element_index]);for(var image_index=0,images_length=images.length;image_index<images_length;image_index++){var classname=getClassName(images[image_index]);if(classname&&classname.split(' ').indexOf('rollover')>=0){new Image().src=rollover.src(images[image_index].getAttribute('src'),/^(.+)_off(\..+)$/,'_on');images[image_index].onmouseover=rollover.func(/^(.+)_off(\..+)$/,'_on');images[image_index].onmouseout=rollover.func(/^(.+)_on(\..+)$/,'_off');}}}};var getClassName=function(object){return object.getAttribute('class')||object.getAttribute('className')||'';};var addEvent=function(element,event,func){if(!!element.addEventListener){element.addEventListener(event,func,false);return true;}else if(!!element.attachEvent){var r=element.attachEvent('on'+event,func);return r;}else{element['on'+event]=func;}};if(!Array.prototype.indexOf){Array.prototype.indexOf=function(r){for(var index=0,array_length=this.length;index<array_length;index++){if(r==this[index]){return index;}}return-1;}}addEvent(window,'load',image_rollover);})();