function topicDesc(ref)
{	
	var strFeatures="toolbar=no,status=no,menubar=no,location=no"
	strFeatures=strFeatures+",scrollbars=yes,resizable=yes,height=600,width=800"
	
	newWin = window.open(ref,"TellObj",strFeatures);

       newWin.opener = top;
}

function schWin(winx)
{
	var strFeatures="toolbar=no,status=no,menubar=no,location=no"
	strFeatures=strFeatures+",scrollbars=yes,resizable=yes,height=800,width=1100"
	
	popWin = window.open(winx,"TellObj",strFeatures);

       popWin.opener = top;
}

function dypop(url,width,height)
{
    x = (640 - width)/2, y = (480 - height)/2;

    if (screen) {
        y = (screen.availHeight - height)/2;
        x = (screen.availWidth - width)/2;
    }
    
	var strFeatures="toolbar=no,status=no,menubar=no,location=no"
	strFeatures=strFeatures+",scrollbars=yes,resizable=yes,height="+height+",width="+width+",screenX="+x+",screenY="+y+",top="+y+",left="+x
	
	openWin = window.open(url,"TellObj",strFeatures);
    openWin.opener = top;
}

function toggle(targetId) {
	target = document.getElementById(targetId);
	if (target.style.display == "none"){
		target.style.display="";
	} else {
		target.style.display="none";
	}
}