function flipBox(who) {
	var tmp; 
	if (document.images['b_' + who].src.indexOf('_on') == -1) { 
		tmp = document.images['b_' + who].src.replace('_off', '_on');
		document.getElementById('box_' + who).style.display = 'none';
		document.images['b_' + who].src = tmp;
	} else { 
		tmp = document.images['b_' + who].src.replace('_on', '_off');
		document.getElementById('box_' + who).style.display = 'block';
		document.images['b_' + who].src = tmp;
	} 
}

function addText(elname, wrap1, wrap2) {
	if (document.selection) { // for IE 
		var str = document.selection.createRange().text;
		document.forms['inputform'].elements[elname].focus();
		var sel = document.selection.createRange();
		sel.text = wrap1 + str + wrap2;
		return;
	} else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
		var txtarea = document.forms['inputform'].elements[elname];
		var selLength = txtarea.textLength;
		var selStart = txtarea.selectionStart;
		var selEnd = txtarea.selectionEnd;
		var oldScrollTop = txtarea.scrollTop;
		//if (selEnd == 1 || selEnd == 2)
		//selEnd = selLength;
		var s1 = (txtarea.value).substring(0,selStart);
		var s2 = (txtarea.value).substring(selStart, selEnd)
		var s3 = (txtarea.value).substring(selEnd, selLength);
		txtarea.value = s1 + wrap1 + s2 + wrap2 + s3;
		txtarea.selectionStart = s1.length;
		txtarea.selectionEnd = s1.length + s2.length + wrap1.length + wrap2.length;
		txtarea.scrollTop = oldScrollTop;
		txtarea.focus();
		return;
	} else {
		insertText(elname, wrap1 + wrap2);
	}
}

function insertText(elname, what) {
	if (document.forms['inputform'].elements[elname].createTextRange) {
		document.forms['inputform'].elements[elname].focus();
		document.selection.createRange().duplicate().text = what;
	} else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
		var tarea = document.forms['inputform'].elements[elname];
		var selEnd = tarea.selectionEnd;
		var txtLen = tarea.value.length;
		var txtbefore = tarea.value.substring(0,selEnd);
		var txtafter =  tarea.value.substring(selEnd, txtLen);
		var oldScrollTop = tarea.scrollTop;
		tarea.value = txtbefore + what + txtafter;
		tarea.selectionStart = txtbefore.length + what.length;
		tarea.selectionEnd = txtbefore.length + what.length;
		tarea.scrollTop = oldScrollTop;
		tarea.focus();
	} else {
		document.forms['inputform'].elements[elname].value += what;
		document.forms['inputform'].elements[elname].focus();
	}
}

function show_hide(msg_id) {
	msg_id.style.display = msg_id.style.display == 'none' ? 'block' : 'none';
}

function CheckData(f) {

ok = 1
msg = ""


if(!f.guest_name.value) { 
ok = 0; 
msg = "-> Ваше имя\n" 
}

if(!f.guest_email.value) { 
ok = 0; 
msg += "-> Ваш E-mail\n" 
}

if(!f.validation.value) { 
ok = 0; 
msg += "-> Ответ на пример\n" 
}

if(!f.guest_message.value) {
ok = 0;
msg += "-> Ваше сообщение\n"
}


if(ok) {
f.submit()


} else alert("Не указаны следующие данные:\n\n" + msg)

}


function cData(f) {

ok = 1
msg = ""


if(!f.f_name.value) { 
ok = 0; 
msg = "-> Ваше имя\n" 
}

if(!f.f_mail.value) { 
ok = 0; 
msg += "-> Ваш E-mail\n" 
}

if(!f.f_subject.value) { 
ok = 0; 
msg += "-> Тема сообщения\n" 
}

if(!f.f_message.value) { 
ok = 0; 
msg += "-> Текст сообщения\n" 
}


if(ok) {
f.submit()


} else alert("Не указаны следующие данные:\n\n" + msg)

}

function openYouTube(opener) {
	var returnValue;
	
	// Safari Mobile doesn't have Flash, so we just let the device use the built-in 
	// YouTube viewer.
	if (/(iPhone|iPod|iPad)/.test(navigator.userAgent)) returnValue = true;

	else returnValue = hs.htmlExpand(opener, { 
		objectType: 'swf', 
		objectWidth: 480, 
		objectHeight: 385, 
		transitions: ['fade'],
		width: 480, 
		outlineType: 'rounded-white',
		outlineWhileAnimating: true,
		allowSizeReduction: false,
		// always use this with flash, else the movie will be stopped on close:
		preserveContent: false,
		wrapperClassName: 'draggable-header no-footer',
		swfOptions: { 
			params: { 
				allowfullscreen: 'true' 
			}
		}, 
		maincontentText: 'You need to upgrade your Flash player' 
	});
	
	return returnValue;
}