function show_category(id) {
	var categories = document.getElementById('categories');
	var categories_li = categories.getElementsByTagName('li');
	var ile = categories_li.length;
	for ( i=0; i<ile; i++ ) {
		var category_group = document.getElementById('category_group_'+i);
		var category = document.getElementById('category_'+i);
		if( 'category_group_'+id == category_group.id ) {
			category_group.style.display = 'block';
			category.className = 'category category_current';
		}
		else {
			category_group.style.display = 'none';
			category.className = 'category';
		}
	}
}

function show_conf_entry(id) {
	var category_groups = document.getElementById('category_groups');
	var cat_groups = category_groups.getElementsByTagName('div');
	var categories = document.getElementById('categories');
	var categories_li = categories.getElementsByTagName('li');
	var id_int = parseInt(id);
	for (x in cat_groups) {
		if( 'category_group_'+id == cat_groups.item(x).id ) {
			cat_groups.item(x).style.display = 'block';
			categories_li.item(x).className = 'category category_current';
		}
		else {
			cat_groups.item(x).style.display = 'none';
			categories_li.item(x).className = 'category';
		}
	}
}

function Details(showPage) {
	var xMax = 800, yMax=600;
	if (document.all) var xMax = screen.width, yMax = screen.height;
	else if (document.layers) var xMax = window.outerWidth, yMax = window.outerHeight;
	var xOffset = (xMax-680)/2;
	var yOffset = (yMax-530)/2;
	window.open(showPage,'Vignette','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=680,height=530,screenX='+xOffset+',screenY='+yOffset+',top='+yOffset+',left='+xOffset+'');
}