// Flood control time in milliseconds:

var floodTime = 1000;



// Time between refreshes (minimum) in milliseconds:

// Note that since 1.08, this option will have less of an effect on performance,

// hence the default value is very low :)

var refreshTime = 150;



// Check for duplicate instances?

// This can improve performance in some cases.

var checkDuplicates = false;



// Internet Explorer 7 has a bug (feature?) which causes extreme lag when

// moving between pages. This delay controls "false alarms"; the amount

// of time between detecting a page move and reloading the shoutbox.

// If it is too high, users may experience laggy shoutboxes.

// If it is too low, users may experience lag moving to a new page.

// This bug only affects Internet Explorer 7 (not previous versions)

var falseAlarmDelay = 5000;



// Don't edit below this line, unless you know what you are doing ;)

username = "";



var yshout_php=(board_url?board_url:'')+'/yshout/yshout.php';



// Set up Behaviour

var myrules = {

	'#shout-form' : function(element){

		element.onsubmit = function(){

			return false;

		}

	},

	

	'#shout-text' : function(element){

		element.onkeypress = function(evt){

			return onKP(element, evt);

		}

		element.onfocus = function() {

			onF(element);

		}

	},

	

	'#shout-button' : function(element){

		element.onclick = function(){

			doSend();

		}

	}

};



var guest;



Behaviour.register(myrules);



// onKeyPress event handler for the two textboxes

function onKP (element, evt) {

	evt = (evt) ? evt : (window.event) ? event : null;



	var charCode;

	if (evt)

	charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode :	((evt.which) ? evt.which : 0));



	if (charCode == 13 || charCode == 3) {

		doSend();

		return false;

	}

}



// onFocus event handler for the two textboxes

function onF (element) {

	element.value = "";

	defocus(element);

}



// Clear the onFocus event handler and set the foreground color to black.

function defocus(element) {

	element.onfocus = null;

	element.style.color = null;

}



// Set off the AJAX call to load the chat form into the empty yShout div

function loadChat() {

	if ($("yshout").style.display=="none") return;

	if(checkDuplicates)

	{

		if(get_cookie("yShout_open"))

		{

			$("yshout").innerHTML="Shoutbox loaded in another window. Retrying...";

			setTimeout("loadChat()",Math.random()*1000+1000/*between 1 and 2 seconds*/);

			return;

		}

		set_cookie("yShout_open","true",3/*seconds*/);

	}

	window.onunload = delcookie;

	if ($("yshout") && shoutFile != "") {

		new ajax (yshout_php, { 

			postBody: 'reqtype=init&file=' + shoutFile,

			update: $('yshout'),

			onComplete: loadDone

		});

	}

}



function delcookie() {

	delete_cookie("yShout_open");

}



// Re-apply Behaviour after the chat loads

function loadDone() {

	setTimeout("Behaviour.apply()", 5);

	setTimeout("setupChat()", 5);

}



var oldNameBackgroundColor, oldTextBackgroundColor;



function setupChat() {

	startRefresh();

	username = $("forum-name").value;

	if($("forum-name").disabled) guest=false;

	else guest=true;

}



function complex_escape(text) {

	return escape(textToEntities(text.replace(/&#/g, "&#"))).replace(/\+/g, "%2B");

}



// Send the message

function doSend() {

	if (guest) {

		if($("forum-name").value=='')

		{

			alert("Please enter a username.");

			return;

		}

		username=complex_escape($F("forum-name"));

		set_cookie("username",username,20*365*24*3600);

		var toShout = complex_escape($F("shout-text"));

		floodControl();

		new ajax (yshout_php, { 

			postBody: 'reqtype=shout&shout=' + toShout + '&file=' + shoutFile + '&username=' + username,

			update: $('shouts'),

			onComplete: shoutDone

		});

		return;

	}

	if (formValidate() && $("shout-text").value) {

		var toShout = complex_escape($F("shout-text"));

		floodControl();

		

		new ajax (yshout_php, { 

			postBody: 'reqtype=shout&shout=' + toShout + '&file=' + shoutFile,

			update: $('shouts'),

			onComplete: shoutDone

		});

	}

}



function autoShout(theText) {

	new ajax (yshout_php, { 

			postBody: 'reqtype=autoshout&shout=' + theText + '&file=' + shoutFile,

			update: $('shouts'),

			onComplete: shoutDone

		});

}



function ajaxGet(args) {

	new ajax (yshout_php+'?'+args, { 

			update: $('shouts'),

			onComplete: shoutDone

		});

}



function goTo(args) {

	if(request) request.transport.abort();

	document.location=yshout_php+'?'+args;

}



// Start refreshing the chat after a message has been sent

function shoutDone() {

	startRefresh();

}



var refreshSet = false;



function startRefresh() {

	if (!refreshSet) {

		setTimeout("doRefresh()", refreshTime);

		refreshSet = true;

	}

}



function schedRefresh() {

	if (refreshSet) {

		setTimeout("doRefresh()", refreshTime);

	}

}



// Validate the form to ensure that the fields are filled

function formValidate() {

	var shoutText = $F("shout-text");



	var textValid = true;



	if (shoutText == "Shout text" || shoutText == "")

		textValid = false;



	if (!textValid) {

		changeClass($("shout-text"), "shout-invalid");

		$("shout-text").focus();

		return false;

	} else {

		changeClass($("shout-text"), "shout-valid-shout");

	}



	return true;

}



// This gets called each refresh; it reloads the shoutboxes content.

var oldShouts = null;
function doRefresh() {
if (oldShouts != null && oldShouts != $("shouts").innerHTML)
{
soundManager.play('sound')
}
oldShouts = $("shouts").innerHTML;

	if($("yshout").style.display == "none") {refreshSet = false; return;};

	set_cookie("yShout_open","true",3/*seconds*/);

	request=new ajax (yshout_php, { 

		postBody: 'reqtype=refresh&file=' + shoutFile,

		update: $('shouts'),

		onComplete: schedRefresh

	});

	// IE7 kludge: Abort transfers before navigating away, otherwise IE waits for completion

	for (i=0;i<document.links.length;i++){

		if(document.links[i].getAttribute("href").substring(11,0) != "javascript:")

			document.links[i].setAttribute("onactivate",function(){request.transport.abort();setTimeout("schedRefresh()",falseAlarmDelay);});

	}

}



function floodControl() {

	$("shout-text").disabled = true;

	$("shout-text").value = "";

	Form.disable($("shout-form"));

	setTimeout("enableShout()", floodTime);



}



function enableShout() {

	Form.enable($("shout-form"));

	$("shout-text").value = "";

	if(!guest) $("forum-name").disabled = true;

	$("shout-text").disabled = false;



	setTimeout('$("shout-text").focus()', 0);

}



function changeClass(element, newClass) {

	element.className = newClass;

}



function set_cookie( name, value, expires, path, domain, secure ) 

{

	// set time, it's in milliseconds

	var today = new Date();

	today.setTime( today.getTime() );

	

	/*

	if the expires variable is set, make the correct 

	expires time, the current script below will set 

	it for x number of days, to make it for hours, 

	delete * 24, for minutes, delete * 60 * 24

	*/

	if ( expires )

	{

		expires = expires * 1000;

	}

	var expires_date = new Date( today.getTime() + (expires) );

	

	document.cookie = name + "=" +escape( value ) +

	( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 

	( ( path ) ? ";path=" + path : "" ) + 

	( ( domain ) ? ";domain=" + domain : "" ) +

	( ( secure ) ? ";secure" : "" );

}



// this function gets the cookie, if it exists

function get_cookie( name ) {

	var start = document.cookie.indexOf( name + "=" );

	var len = start + name.length + 1;

	if ( ( !start ) &&

	( name != document.cookie.substring( 0, name.length ) ) )

	{

	return null;

	}

	if ( start == -1 ) return null;

	var end = document.cookie.indexOf( ";", len );

	if ( end == -1 ) end = document.cookie.length;

	return unescape( document.cookie.substring( len, end ) );

}



function delete_cookie ( cookie_name )

{

	var cookie_date = new Date ( );  // current date & time

	cookie_date.setTime ( cookie_date.getTime() - 1 );

	document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();

}