/* JAVASCRIPT DOCUMENT */
/* QELA - 2008 */

function setSection(id) {
	document.getElementById(id).className = document.getElementById(id).className + " selected";
}
function show(id) {
	document.getElementById(id).style.display = "block";
}
function hide(id) {
	document.getElementById(id).style.display = "none";
}
function openCategory(id) {
	document.getElementById(id).className = "opened";
	if(id == 'sm4_cat1'){
		writeCookie('sm4_cat1', 'opened');
	}else if(id == 'sm4_cat2'){
		writeCookie('sm4_cat2', 'opened');
	}
}
function closeCategory(id) {
	document.getElementById(id).className = "";
	if(id == 'sm4_cat1'){
		clearCookie('sm4_cat1');
	}else if(id == 'sm4_cat2'){
		clearCookie('sm4_cat2');
	}
}

function switchCategory(id) {
	category = document.getElementById(id); 
	if (category.className == "opened"){
		closeCategory(id);
	}else{
		openCategory(id);
	}
}

function switchSubmenu(id) {
	submenu = document.getElementById(id); 
	if (submenu.style.display == "none"){
		submenu.style.display = "block";
	}else{
		submenu.style.display = "none";	
	}
}

function writeCookie(name, value){
	var argv=writeCookie.arguments;
	var argc=writeCookie.arguments.length;
	var expires=(argc > 2) ? argv[2] : null;
	var path=(argc > 3) ? argv[3] : null;
	var domain=(argc > 4) ? argv[4] : null;
	var secure=(argc > 5) ? argv[5] : false;
	document.cookie=name+"="+escape(value)+
	((expires==null) ? "" : ("; expires="+expires.toGMTString()))+
	((path==null) ? "" : ("; path="+path))+
	((domain==null) ? "" : ("; domain="+domain))+
	((secure==true) ? "; secure" : "");
}
function getCookieVal(offset){
	var endstr=document.cookie.indexOf (";", offset);
	if (endstr==-1) endstr=document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr)); 
}
function readCookie(name){
	var arg=name+"=";
	var alen=arg.length;
	var clen=document.cookie.length;
	var i=0;
	while (i<clen){
	var j=i+alen;
	if (document.cookie.substring(i, j)==arg) return getCookieVal(j);
	i=document.cookie.indexOf(" ",i)+1;
	if (i==0) break;
	}
	return null; 
}
function clearCookie(name){
	date=new Date;
	date.setFullYear(date.getFullYear()-1);
	writeCookie(name,null,date); 
}
function checkSubMenuStatus() {
	if(readCookie('sm4_cat1') == 'opened'){
		document.getElementById('sm4_cat1').className = 'opened';
		document.getElementById('sm4_cat1_btn').style.display = 'block';
	}
	if(readCookie('sm4_cat2') == 'opened'){
		document.getElementById('sm4_cat2').className = 'opened';
		document.getElementById('sm4_cat2_btn').style.display = 'block';
	}
}