var opened = "";
var	obj;
var form;

function hideObj( obj, id )
{
	obj.visibility = "hidden";
	obj.display = "none";
	if( opened == id ) opened = ""
}
function showObj( obj, id )
{
	obj.visibility = "visible";
	obj.display = "";
	if( opened != "" ) 
	{
		if( ! opened.match( "open" ) ) hide( opened );
	}
	opened = id
}

function hide( id ) 
{
	obj = document.getElementById(id).style;
	hideObj( obj, id );
};

function ShowHide( id )
{
	var obj
	obj = document.getElementById(id).style;
	if( obj.visibility == "visible" )
		hideObj( obj, id ); 
	else
		showObj( obj, id ); 
}