function form(action, method, target, submit)
{
	if ('undefined' == typeof(method)) {
		method = 'post';
	}
	var targ = '';
	if (false != target && 'undefined' != typeof(target)) {
		targ = ' target="' + target + '"';
	}
	var subm = '';
	if ('undefined' != typeof(submit)) {
		subm = ' onsubmit="'+submit+'" '
	}
	document.write('<form method="'+method+'" action="'+action+'" '+targ+' '+subm+' enctype="multipart/form-data">');
	return;
}


function hide_id(layer)
{
	if (typeof(layer) != 'object') {
		var l = document.getElementById(layer);
	} else {
		var l = layer;
	}
	l.style.display = "none";
	l.style.visibility = "hidden";
	return true;
}

function show_id(layer)
{
	if (typeof(layer) != 'object') {
		var l = document.getElementById(layer);
	} else {
		var l = layer;
	}
	try {
		l.style.display = "block";
	} catch(e){
	}
	try {
		l.style.visibility = "visible";
	} catch(e){
	}
	return true;
}

function sub(d)
{
	var div = document.getElementById('s'+d);
	if ('none' == div.style.display || '' == div.style.display) {
		show_id('s'+d);
	} else {
		hide_id('s'+d);
	}
}