var temp
function scrollControl()
{
   	clearTimeout(temp);
	Ypos=document.body.scrollTop;
	if (Ypos<270)
	{document.all.backttop.style.visibility='hidden';
	document.all.backttop.style.top=50;}
	else
	{document.all.backttop.style.visibility='visible';
	document.all.backttop.style.top=Ypos-280;}
	temp=setTimeout('scrollControl()',0);
	
}



function openBio(writerName)
{
 eval("window.open('bios/"+writerName+".html','bio','scrollbars=yes,resizable=yes,menubar=no,toolbar=no,status=no,location=no,width=450,height=400')")
}
 
 function openAbstract(writerName)
{
 eval("window.open('abstracts/"+writerName+".html','abstract','scrollbars=yes,resizable=yes,menubar=no,toolbar=no,status=no,location=no,width=450,height=400')")
}