var image_plus;  image_plus = new(Image);  image_plus.src = 'img/item_close.gif';
var image_minus; image_minus = new(Image); image_minus.src = 'img/item_open.gif';

function show_hide_div(name, img)
{
	var s = document.getElementById(name).style.display;
	if (s.indexOf('none') != -1)
	{
		document.getElementById(name).style.display = '';
		if(img != "") document.getElementById(img).src = image_minus.src;
	}
	else
	{
		document.getElementById(name).style.display = 'none';
		if(img != "") document.getElementById(img).src = image_plus.src;
	}
}

function sel(obj)
{
	obj.style.background = "#FFF";
	obj.style.color = "#000";
}

function unsel(obj)
{
	obj.style.background = "";
	obj.style.color = "#FFF";
}