dir = '/img';
mode = '0';

function myOpenClose(id)
{
	return hl_openCloseOptions(id,id,mode,dir);
}

function hl_getE(id)
{
	if(document.getElementById) {
		return document.getElementById(id);
	} else if(document.all) {
		return document.all[id];
	} else return false;
}

function hl_openClose(id,mode,dir)
{
	element = hl_getE(id);
	img = hl_getE('img_'+id);
	if (element.style) {
		if (mode == 0) {
			if(element.style.display == 'block' || element.style.display != 'none' ) {
				element.style.display = 'none';
				img.src = dir+'/plus.png';
				img.alt='[+]';
			} else {
				element.style.display = 'block';
				img.src = dir+ '/moins.png';
				img.alt='[-]';
			}
		} else if(mode == 1) {
			element.style.display = 'block';
			img.src = dir+'/moins.png';
			img.alt='[-]';
		} else if(mode == -1) {
			element.style.display = 'none';
			img.src = dir+'/plus.png';
			img.alt='[+]';
		}
	}
}
function hl_createCookie(name,value) {
	document.cookie = name+'='+value+';';
}

function hl_readCookie(name) {
	var nameEQ = name + '=';
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
			if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return 0;
}

function hl_openCloseOptions(id,cookie_name,mode,dir)
{
	if (mode != null) {
		hl_openClose(id,mode,dir);
		e = hl_getE(id);
		if (e.style.display == 'block' || element.style.display != 'none' ) {
			cookie_value = '1';
		} else {
			cookie_value = '-1';
		}
		hl_createCookie(cookie_name,cookie_value);
	} else {
		cookie = hl_readCookie(cookie_name);
		if (!cookie) {
			cookie = -1
		}
		hl_openClose(id,cookie);
	}
}


function load_user_pref()
{
var tmp_cookie = hl_readCookie('ulcategories');
if (tmp_cookie==0) tmp_cookie = 1;
	hl_openClose('ulcategories',tmp_cookie,dir);
	hl_openClose('ullastcomments',hl_readCookie('ullastcomments'),dir);
	hl_openClose('ularchives',hl_readCookie('ularchives'),dir);
	hl_openClose('ullinks',hl_readCookie('ullinks'),dir);
}