/* Rollover Menu */

/*
Standards Compliant Rollover Script
Author : Daniel Nolan
http://www.bleedingego.co.uk/webdev.php
*/

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'btn') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

window.onload = initRollovers;


/* PageScroll */

/*
++++ Page`z scroll ++++
Powered by . kerry
http://202.248.69.143/~goma/
動作ブラウザ :: IE4+, NN6+, Opera7+  
*/


gValz = new Array();

function pageScroll(_tId)
{
    // スクロールする距離
    gValz.scrollLength = 8;
    
    // 時間（ 1000 = １秒 ）
    var speedLength = 10;
    
    if (gValz.timeId) clearInterval(gValz.timeId);
    if (document.all && !window.opera)
    {   
        with(document.body){
        var winHeight   = clientHeight;
        var docHeight   = scrollHeight;
        var pTopPos     = scrollTop;
        gValz.pLeftPos  = scrollLeft;
        }
        var obj = document.all(_tId);
    }
    else
    {
        var winHeight   = window.innerHeight;
        var docHeight   = document.height;
        var pTopPos     = window.pageYOffset;
        gValz.pLeftPos  = window.pageXOffset;
        var obj = document.getElementById? document.getElementById(_tId): "";
    }

    if (!obj || !docHeight || (obj && !obj.offsetTop)) return true;

    gValz.targetElmPos = obj.offsetTop;
    if (gValz.targetElmPos+ winHeight > docHeight) gValz.targetElmPos = docHeight- winHeight;
    gValz.udFlag    = !!(gValz.targetElmPos<pTopPos);
    gValz.tpTopPos  = pTopPos;
    gValz.timeId    = setInterval("pScrolling()", speedLength);

    return false;
}



function pScrolling()
{   
        var tempPTop = document.all? document.body.scrollTop: window.pageYOffset;
        var endFlag=0;
        if (!gValz.udFlag)
        {
            gValz.tpTopPos += Math.ceil((gValz.targetElmPos- tempPTop) * (gValz.scrollLength/100));
            if (gValz.targetElmPos <= gValz.tpTopPos) endFlag=1;
        }
        else
        {
            gValz.tpTopPos -= Math.ceil((tempPTop- gValz.targetElmPos)* (gValz.scrollLength/100));
            if (gValz.targetElmPos >= gValz.tpTopPos) endFlag=1;
        }
        
        if (endFlag)
        {
            gValz.tpTopPos = gValz.targetElmPos;
            gValz.timeId = clearInterval(gValz.timeId);
        }
        scrollTo(gValz.pLeftPos, gValz.tpTopPos)
}