function group(id) {
	thesub = document.getElementById('ul'+id);
	theimage = document.getElementById('img_'+id);
						
	if(thesub.style.display == 'block') {
		thesub.style.display = 'none';
		theimage.src = 'http://www.esscocontrols.co.uk/images/plus.gif';
	} else {
		thesub.style.display = 'block';
		theimage.src = 'http://www.esscocontrols.co.uk/images/minus.gif';
	}
	bold(id, '#g');
	$('.right').load('http://www.esscocontrols.co.uk/support/disc_cat/'+id+'.html');
}

function product(id) {
	$('.right').load('http://www.esscocontrols.co.uk/support/disc_prod/'+id+'.html');
	bold(id, '#p');
}

function unbold() {
	$(".list a").css('font-weight', 'normal');
}

function bold(id, w) {
	unbold();
	$(w+id).css('font-weight', 'bold');
	$(".list .manuf a").css('font-weight', 'bold');
}