isIE = document.all;            // ブラウザ(IE)のチェック用
isN6 = document.getElementById; // ブラウザ(N6)のチェック用
isN4 = document.layers;         // ブラウザ(N4)のチェック用
myObj = "";                     // ブラウザオブジェクト退避用

//	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 CurrLeft() {
	if (isIE) {
		return document.body.scrollLeft;
	} else if (window.pageXOffset) {
		return window.pageXOffset;
	} else {
		return 0;
	}
}

function CurrTop() {
	if (isIE) {
		return document.body.scrollTop;
	} else if (window.pageYOffset) {
		return window.pageYOffset;
	} else {
		return 0;
	}
}


var TimerOfScrollPage;
var currX;
var currY;
var currX0;
var currY0;
var newX;
var newY;
var unittime = 2;

function ScrollPage(toX, toY, breaking) {
	if (TimerOfScrollPage) clearTimeout(TimerOfScrollPage);

	if (!toX || toX < 0)	{toX = 0;}
	if (!toY || toY < 0)	{toY = 0;}
//	if (!currX)	{currX = CurrLeft();}
//	if (!currY)	{currY = CurrTop();}
	currX0 = CurrLeft();
	currY0 = CurrTop();
	currX = currX0;
	currY = currY0;
	if (!breaking)	{breaking = 5;}

//	alert("stop " + toX + "," + toY + "," + currX + "," + currY);

	currX += (toX - currX) / breaking;
	if (currX < 0) {currX = 0;}
	currY += (toY - currY) / breaking;
	if (currY < 0) {currY = 0;}

//	alert("stop " + currX + "," + currY);

	if (toX < currX) {
		currX = Math.floor(currX);
	} else {
		currX = Math.ceil(currX);
	}
	if (toY < currY) {
		currY = Math.floor(currY);
	} else {
		currY = Math.ceil(currY);
	}
	window.scrollTo(currX, currY);

//	alert("stop " + currX + "," + currY );

	newX = CurrLeft();
	newY = CurrTop();
	//	まだ動く余地があって、
	if (newX != currX0 || newY != currY0) {
		//	未到達の場合は、
		if (currX != toX || currY != toY) {
//			alert("set timer " + toX + "," + toY + "," + breaking);
			//	繰り返し
			TimerOfScrollPage = setTimeout("ScrollPage(" + toX + "," + toY + "," + breaking + ")", unittime);
		}
	}

}


function JumpToPageTop() {
	ScrollPage(0, 0, 10);
}


function getAnchorPosObj(objectname)
{
	var obj;
	if( document.all ) {
		obj =  document.all(objectname);
	} else if( document.getElementById ) {
		obj =  document.getElementById(objectname);
	} else if( document.layers ) {
		obj =  document.layers[objectname];
	} else {
		return false;
	}

	var objnew = new Object();
	var objtmp;
	if( document.getElementById )
	{
		objtmp = obj;
		objnew.x = objtmp.offsetLeft;
		objnew.y = objtmp.offsetTop;
		while( ( objtmp = objtmp.offsetParent ) != null )
		{
			objnew.x += objtmp.offsetLeft;
			objnew.y += objtmp.offsetTop;
		}
	}
	else if( document.all )
	{
		objtmp = obj;
		objnew.x = objtmp.offsetLeft;
		objnew.y = objtmp.offsetTop;
		while( ( objtmp = objtmp.offsetParent ) != null )
		{
			objnew.x += objtmp.offsetLeft;
			objnew.y += objtmp.offsetTop;
		}
	}
	else if( document.layers )
	{
		objnew.x = document.anchors[objectname].x;
		objnew.y = document.anchors[objectname].y;
	}
	else
	{
		objnew.x = 0;
		objnew.y = 0;
	}
	return objnew;
}


function JumpToAnchor(anchorname) {
	if (getAnchorPosObj(anchorname)) {
//		ScrollPage(getAnchorPosObj(anchorname).x, getAnchorPosObj(anchorname).y, 10);
		ScrollPage(0, getAnchorPosObj(anchorname).y, 10);
	} else {
		return false;
	}
}