function trim(text)
{
	return text.replace(/(?:^\s+|\s+$)/g, ''); 
}

function popup(url)
{
	vpopup(url, 800, 420, 100, 100);
}
	
function vpopup(url, width, height, left, top)
{
	window.open(url, '', 'fullscreen=0,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
}

function toggleMenu(id, slow)
{
    $('#cat_' + id).slideToggle(slow ? 'slow' : 5);
		
    var img = document.getElementById('img_' + id);		
    if(img)
        img.src = (img.src.indexOf('minus.gif') == img.src.length - 9 ? '/images/plus.gif' : '/images/minus.gif');
}