<!--

//ページトップへ

var timerScroll;

var posX;

var posY;

var Ver = parseFloat(navigator.appVersion);

var frm = 10;

if(navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1) { fIE = true; } else { fIE = false; }

if(navigator.appVersion.indexOf('Mac',0) != -1) { fMac = true; } else { fMac = false; }

if(navigator.appName.indexOf("Netscape",0) != -1) { fNN = true; } else { fNN = false; }

if((fMac && navigator.appVersion.indexOf('MSIE 4.',0) != -1)) { fMacIE4 = true; } else { fMacIE4 = false; }

if((fMac && navigator.appVersion.indexOf('MSIE 3.',0) != -1)) { fMacIE3 = true; } else { fMacIE3 = false; }



function getPosY() {

	if (fIE) { return document.body.scrollLeft; }

	else if (window.pageXOffset) { return window.pageXOffset; }

	else { return 0; }

}



function getPosX() {

	if (fIE) { return document.body.scrollTop; }

	else if (window.pageYOffset) { return window.pageYOffset; }

	else { return 0; }

}



function scroll2Top(pos2X,pos2Y,pos3X,pos3Y) {

	if (timerScroll) { clearTimeout(timerScroll); }

	if (!pos2X || (pos2X < 0)) { pos2X = 0; }

	if (!pos2Y || (pos2Y < 0)) { pos2Y = 0; }

	if (!pos3X) { pos3X = 0 + getPosY() };

	if (!pos3Y) { pos3Y = 0 + getPosX() };



	if (pos2Y > pos3Y && pos2Y > (getAnchorPosObj2('end','enddiv').y) - getInnerSize().height) pos2Y = (getAnchorPosObj2('end','enddiv').y - getInnerSize().height) + 1;

	pos3X += (pos2X - getPosY()) / frm;

	if (pos3X < 0) pos3X = 0;

	pos3Y += (pos2Y - getPosX()) / frm;

	if (pos3Y < 0) pos3Y = 0;

	posX = Math.floor(pos3X);

	posY = Math.floor(pos3Y);

	window.scrollTo(posX, posY);



	if (posX != pos2X || posY != pos2Y) {

		timerScroll = setTimeout("scroll2Top("+pos2X+","+pos2Y+","+pos3X+","+pos3Y+")",10);

	}

}



function jumpToPageTop() {

	scroll2Top(0,0);

}

//-->