/*
document.write  ('<TABLE width=743 border=0 align="center" cellPadding=0 cellSpacing=0 bgcolor="#FFFFFF">')
document.write  ('<TR>')
document.write  ('<TD width="189" align="left"><div id="MovedDiv" style="position:absolute; width:20px; height:20px; z-index:1">')
document.write  ('<div style="position:absolute; width:51px; height:30px; z-index:1; left: 690px; top: 54px;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,sizingMethod=image,src=\'images/icon_back_0.png\' );cursor:hand;" onclick="javascript:window.location.href=\'/\';"></div>')
document.write  ('</div><img src="/special/200512study/images/head_1.jpg"></TD>')
document.write  ('<TD rowspan="2"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="554" height="85">')
document.write  ('<param name="movie" value="images/head.swf">')
document.write  ('<param name="quality" value="high">')
document.write  ('<param name="menu" value="false">')
document.write  ('<param name="wmode" value="opaque">')
document.write  ('<embed src="images/head.swf" width="554" height="85" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" menu="false" wmode="opaque"></embed>')
document.write  ('</object></TD>')
document.write  ('</TR>')
document.write  ('<TR>')
document.write  ('<TD><img src="images/logo_1.gif"></TD>')
document.write  ('</TR>')
document.write  ('</TABLE>')
*/
//********************************************************
var lastScrollY=0;
function backtop()
{
	diffY=document.body.scrollTop;
	percent=.1*(diffY-lastScrollY);
	if(percent>0)
	{
		percent=Math.ceil(percent);
	}
	else
	{
		percent=Math.floor(percent);
	}
	document.all.MovedDiv.style.pixelTop+=percent;
	lastScrollY=lastScrollY+percent;
}
window.setInterval("backtop()",10);