function checkGuestbook(form) {
	var fields = new Array('r_author','r_text','keystring');
	var submit = true;
	for (var x=0;x<fields.length;x++) {
		if (form.elements[fields[x]].value == '') {
			submit = false;
		}
	}
	if (!submit) { alert("Похоже, некоторые обязательные поля не заполнены.\nПроверьте, пожалуйста."); }
	return submit;
}

function checkOrdinaryForm(form) {
	var fields = new Array("fio","phone","firm","text","keystring"), submit = true;
	for (var x=0;x<fields.length;x++) { if (form.elements[fields[x]].value == "") { submit = false; }}
	if (!submit) { alert("Похоже, некоторые обязательные поля не заполнены.\nПроверьте, пожалуйста."); }
	return submit;
}

var chat_window, condition;
function openChat(en) {
	var j_wid = 500, j_hei = 500;
	var suff = en == true ? '?lang=en' : '';
	if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1)
		condition = (chat_window && !chat_window.closed);
	else
		condition = (chat_window && !chat_window.closed && chat_window.closed != undefined);
	
	if (condition) {
		chat_window.ficus();
	}
	else {
		chat_window = window.open("/chat.php"+suff, "winbox", "toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, resizable=0, width="+ j_wid +", height="+ j_hei +", left="+(screen.width-j_wid)/2+", top="+(screen.height-j_hei)/2);
	}
}

function storeMessage() {
	$('#submit').attr('disabled',true);
	$.post('/include/ajax/store.php', $("#chatform").serialize(), function(data) {
		$('#text').val('');
		$('#chat').prepend(data);
		$('#submit').attr('disabled',false);
	});
}