function setfocuson(controlname)
{	
	var control=document.getElementById(controlname);
	if (control!=null)
	{
	document.getElementById(controlname).focus();
	}
}
function reveal(controlname, show)
{
	var thing=document.getElementById(controlname);
	if (show)
		{thing.style.visibility='visible';}
	else
		{thing.style.visibility='hidden';};
}
function reveal2(controlname, show)
{
	var thing=document.getElementById(controlname);
	if (show)
		{thing.style.visibility='visible';
		thing.style.display='inline';}
	else
		{thing.style.visibility='hidden';};
}
function remove(controlname)
{
	var thing=document.getElementById(controlname);
	thing.style.display='none';
}
function expand(showhidecontrol, divname)
{
	var div=document.getElementById(divname);
	var image=showhidecontrol;
	if (image.className=="plus")
		{
		image.className="minus";
		div.style.visibility="visible";
		}
	else
		{
		image.className="plus";
		div.style.visibility="hidden";
		}
}
function goto(url)
{
    parent.location=url;
    return false;
}