function btnShowDD(elm)
{
	var elms;

	if (window.event)
		elm = window.event.srcElement;

	while (elm.className != 'btnTable')
		elm = elm.parentNode;
		
	elms = elm.getElementsByTagName('div');
	
	for (i=0;i<elms.length;i++)
		if (elms[i].className == 'btnSubitems')
			elms[i].style.display = 'block';
}


function btnHideDD(elm)
{
	var elms;

	if (window.event)
		elm = window.event.srcElement;
		
	while (elm.className != 'btnTable')
		elm = elm.parentNode;

	elms = elm.getElementsByTagName('div');

	for (i=0;i<elms.length;i++)
		if (elms[i].className == 'btnSubitems')
			elms[i].style.display = 'none';

}