function toggle(obj) 
{
	var el = document.getElementById(obj);
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}

function show(obj) 
{
	var el = document.getElementById(obj);
	el.style.display = '';
}

function hide(obj) 
{
	var el = document.getElementById(obj);
	el.style.display = 'none';
}

function confirmDelete( message )
{
	if (confirm(message))
	{
	  return true;
	}
	else
	{
		return false;
	}
}		

function popup( t, w, h, s )
{
	params='directories=no,location=no,menubar=no,toolbar=no,status=no,resizable=yes,scrollbars='+s;
	params+=',left=10,top=10,width=' + w + ',height=' + h;
	var popupWin = window.open( '', target=t, params );
	popupWin.focus();
}	

function textCounter(textAreaField, countfield, limit)
{
	if (textAreaField.value.length > limit) 
		textAreaField.value = textAreaField.value.substring(0, limit);
	else
		document.getElementById(countfield).innerHTML = limit - textAreaField.value.length;
}