function checkForm(formname, fieldname) { 
	var re = /^\w+([\.-]?\w+)*@(((([a-z0-9]{2,})|([a-z0-9][-][a-z0-9]+))[\.][a-z0-9])|([a-z0-9]+[-]?))+[a-z0-9]+\.([a-z]{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$/i;
	if(re.test(eval("document.forms['"+formname+"']."+fieldname+".value"))) return true;
	else {
		alert("Email is incorrect!");
		eval("document.forms['"+formname+"']."+fieldname+".focus()");
		return false; 
	} 
}
function email (login, sc)
{
 	var serv = new Array;
	serv['m'] = "mail.ru";
	serv['r'] = "rambler.ru";
	serv['y'] = "yandex.ru";
	serv['g'] = "gmail.com";
	serv['e'] = "empo.com.ua"
	eml = login +  "@" + serv[sc];
	return eml;
}
//=================== mail
function mylo (login, sc)
{
document.write (email(login, sc));
}

function namylo (login, sc, subj)
{
eml = "mailto:" + email(login, sc);
if (subj != "") eml += "?subject=" + subj;
window.location.href = eml;
}
/*Use: <a href="javascript:namylo('box','e','Регистрация на курс Google AdWords');" ><script type="text/javascript">mylo('box,'e');</script></a> */
//==================  cookie

function set_cookie(name, value, expires, path, domain, secure) {
if(!expires){ expires = new Date(); //   
 expires.setTime(expires.getTime() + (1000 * 86400 * 365)); //    cookie
}
document.cookie = 
name +"=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
return true;
}

function toggleById(id)
    {$("#"+id).toggle(500); return false;	}

function faderIn(id){
if(id!='menu2') $('#menu2').css('display','none'); 
if(id!='menu3') $('#menu3').css('display','none'); 
if(id!='menu5') $('#menu5').css('display','none'); 
$('#'+id).fadeIn(500);
}