function get_id(id_name)
{
	if (document.all)
	{
		element_id = eval("document.all." + id_name);
	}
	else if (document.getElementById)
	{
		element_id = eval("document.getElementById('" + id_name + "')");
	}
	else if (document.layers)
	{
		element_id = eval("document." + id_name);
	}
	
	return element_id;
	
}

function toogle_div(div_id, status)
{
	id = get_id(div_id);
	
	switch (status)
	{
		case 1:
		{
			id.style.display = 'block';
			break;
		}
		case -1:
		{
			id.style.display = 'none';
			break;
		}
		default:
		{
			if (id.style.display == 'block')
			{
				id.style.display = 'none';
			}
			else
			{
				id.style.display = 'block';
			}
			break;
		}
		
	}
	
	return true;
}

function open_popup(url) 
{

	w = 520;

	h = 520;

	sw = screen.width;

	sh = screen.height;

	l = (sw - w) / 2;

	t = (sh - h) / 2;

	window.open(url, 'bemati', 'width='+w+',height='+h+',top='+t+',left='+l+',scrollbars=no,resizable=no');	

}