//このページのトップへ

var Mac = navigator.appVersion.indexOf('Mac',0) != -1;

var Win = navigator.appVersion.indexOf('Win',0) != -1;

var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;

var NN  = navigator.appName.indexOf("Netscape",0) != -1;

var Moz = navigator.userAgent.indexOf("Gecko") != -1;

var Vmajor = parseInt(navigator.appVersion);	// ex. 3

var Vminor = parseFloat(navigator.appVersion);	// ex. 3.01

var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));

var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));



function getScrollLeft() {

	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {

		return document.body.scrollLeft;

	} else if (window.pageXOffset) {

		return window.pageXOffset;

	}else{

		return 0;

	}

}



function getScrollTop() {

	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {

		return document.body.scrollTop;

	} else if (window.pageYOffset) {

		return window.pageYOffset;

	} else {

		return 0;

	}

}



function getScrollWidth() {

	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {

		return document.body.scrollWidth;

	} else if (window.innerWidth) {

		return window.innerWidth;

	}

	return 0;

}



function getScrollHeight() {

	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {

		return document.body.scrollHeight;

	} else if (window.innerHeight) {

		return window.innerHeight;

	}

	return 0;

}



var pageScrollTimer;



function pageScroll(toX,toY,frms,cuX,cuY) {

 if (pageScrollTimer) clearTimeout(pageScrollTimer);

 if (!toX || toX < 0) toX = 0;

 if (!toY || toY < 0) toY = 0;

 if (!cuX) cuX = 0 + getScrollLeft();

 if (!cuY) cuY = 0 + getScrollTop();

 if (!frms) frms = 6;



 cuX += (toX - getScrollLeft()) / frms; if (cuX < 0) cuX = 0;

 cuY += (toY - getScrollTop()) / frms;  if (cuY < 0) cuY = 0;

 var posX = Math.floor(cuX);

 var posY = Math.floor(cuY);

 window.scrollTo(posX, posY);

 if (posX != toX || posY != toY) {

  pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);

 }

}



function toTop(){

	if (!MacIE3 && !MacIE4 && !NN && window.scrollTo || NN && (Vminor >= 4.75) && window.scrollTo) {

		pageScroll(0,0,6);

	} else {

		location.hash = "top";

	}

}



//IMG

function newImage(arg) {

	if (document.images) {

		rslt = new Image();

		rslt.src = arg;

		return rslt;

	}

}



function changeImages() {

	if (document.images && (preloadFlag == true)) {

		for (var i=0; i<changeImages.arguments.length; i+=2) {

			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];

		}

	}

}



var preloadFlag = false;

function preloadImages() {

	if (document.images) {

		bt01 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_admission_over.gif");

		bt02 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_economics_over.gif");
		
		bt03 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_greeting_over.gif");

		bt04 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_le-lib_over.gif");
		
		bt05 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_management-over.gif");

		bt06 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_management_over.gif");
		
		bt07 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_map_over.gif");

		bt08 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_outline_over.gif");
		
		bt09 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_students_over.gif");

		bt10 = newImage("http://bs1.bluebamboo.co.jp/~gakushuin/common/menu_teacher_over.gif");

		preloadFlag = true;

	}

}

flg=false;
function sub_open(){
	if(flg){
		myWin.close();
	}else{
myWin=window.open("msg2.html","","width=400,height=350,left=0,top=0,toolbar=no,menubar=no,status=no");
	}
	flg=!flg;
}