function pageTopImg(vis) {
	if (navigator.platform=="Win32" && navigator.appName=="Microsoft Internet Explorer") {
		document.write('<div id="floater" style="width: 15px; height: 68px; position: absolute; left: 957px; top: 100px; z-index: 1; visibility: ' + vis + ';"><a onfocus="this.blur()" href="#header"><img src="/common/images/btn_top_def.gif" width="15" height="68" border="0" alt="page top"></a></div>');
	} else {
		document.write('<div id="floater" style="width: 15px; height: 68px; position: fixed; left: 957px; bottom: 130px; z-index: 1; visibility: ' + vis + ';"><a href="#header"><img src="/common/images/btn_top_def.gif" width="15" height="68" border="0" alt="page top"></a></div>');
	}
}

function goTop() {
	//スクロール処理
	if (navigator.platform=="Win32" && navigator.appName=="Microsoft Internet Explorer") {
		window.scrollTo(0,0);
	} else {
		;
	}
}

var Xpos = 0;
var Ypos = 0;
var Ygravity = 0.85;
var scrollPos = 0;
var oldScrollPos = 0;

function floatMenu() {
	if (navigator.platform=="Win32" && navigator.appName=="Microsoft Internet Explorer") {
		docWidth = document.body.clientWidth; // Update document width
		docHeight = document.body.clientHeight; // Update document height
		oldScrollPos = scrollPos;
		scrollPos = document.body.scrollTop; // Update scrollbar position
		
		Xpos = 957;																	//ページTOPボタンの左からの位置
		Yboundary = ((scrollPos + docHeight) - floater.offsetHeight) - 130;				//最後の数字がページTOPボタンの下からの位置
		
		if (floater.offsetTop < Yboundary - 1) // Object is behind boundary
		Ypos += 2;
		
		if (floater.offsetTop > Yboundary + 1) // Object is past boundary
		Ypos -= 1;
		
		Ypos *= Ygravity; // Slow object down
		
		floater.style.pixelLeft = Xpos;
		floater.style.pixelTop += Ypos; // Make object bounce
	} else {
		;
	}
}
//pageTopImg()より後に呼び出す
function pageTopMove() {
	if (navigator.platform=="Win32" && navigator.appName=="Microsoft Internet Explorer") {
		window.setInterval("floatMenu()", 1); //Speed to go down
	} else {
		;
	}
}