function checkForm()
{
    var err_str;
	err_str='';
	err_fld='';
	
	for(i=0; i<forma.elements.length; i++)
	{
		if(forma.elements[i].value=='')
		{ 
			err_str='You did not fill in the field '+forma.elements[i].name;
			err_fld=forma.elements[i].name;
			alert(err_str);
			if(err_fld!='') { eval("forma.elements['"+err_fld+"'].focus()"); }
			return false;
		}
	}
    return true;
}

function WriteMeta() {
var str="<form action='/mail/mailer.php' method='post' name='forma' onSubmit='return checkForm();'><input type=hidden name='to' value='<Maria.Starchenko@gmail.com>, <maria@corzar-records.pp.ru>'>";
document.write(str);
}

WriteMeta();