//--------------------------------------------
// Set up our simple tag open values
//--------------------------------------------
//
// Modified by Volker Puttrich to allow IE 4+
// on windows to use cursor position for inserting
// tags / smilies

var B_open = 0;
var I_open = 0;
var U_open = 0;
var QUOTE_open = 0;
var CODE_open = 0;
var SQL_open = 0;
var HTML_open = 0;

var bbtags   = new Array();

// Determine browser type and stuff.
// Borrowed from http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html

var myAgent   = navigator.userAgent.toLowerCase();
var myVersion = parseInt(navigator.appVersion);

var is_ie   = ((myAgent.indexOf("msie") != -1)  && (myAgent.indexOf("opera") == -1));
var is_nav  = ((myAgent.indexOf('mozilla')!=-1) && (myAgent.indexOf('spoofer')==-1)
                && (myAgent.indexOf('compatible') == -1) && (myAgent.indexOf('opera')==-1)
                && (myAgent.indexOf('webtv') ==-1)       && (myAgent.indexOf('hotjava')==-1));

var is_win   =  ((myAgent.indexOf("win")!=-1) || (myAgent.indexOf("16bit")!=-1));
var is_mac    = (myAgent.indexOf("mac")!=-1);

// Set the initial radio button status based on cookies

var allcookies = document.cookie;
var pos = allcookies.indexOf("bbmode=");

prep_mode();

function prep_mode()
{
	if (pos != 1) {
		var cstart = pos + 7;
		var cend   = allcookies.indexOf(";", cstart);
		if (cend == -1) { cend = allcookies.length; }
		cvalue = allcookies.substring(cstart, cend);
		
		if (cvalue == 'ezmode') {
			document.REPLIER.bbmode[0].checked = true;
		} else {
			document.REPLIER.bbmode[1].checked = true;
		}
	} 
	else {
		// default to normal mode.
		document.REPLIER.bbmode[1].checked = true;
	}
}

function setmode(mVal)
{
	document.cookie = "bbmode="+mVal+"; path=/; expires=Wed, 1 Jan 2020 00:00:00 GMT;";
}

function get_easy_mode_state()
{
	// Returns true if we've chosen easy mode
	
	if (document.REPLIER.bbmode[0].checked) {
		return true;
	}
	else {
		return false;
	}
}

//-----------------------------------------------------------------------------
// 使用Ctrl+Enter直接提交贴子 - 详细信息请查看 - http://www.ibfchina.com - 开始
//-----------------------------------------------------------------------------
function ctlent(){
	if (event.keyCode==13 && event.ctrlKey)		
		document.forms("REPLIER").submit.click();
}
//-----------------------------------------------------------------------------
// 使用Ctrl+Enter直接提交贴子 - 详细信息请查看 - http://www.ibfchina.com - 结束
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------
// 主题标题叙述前缀选项 - 详细信息请查看 - http://www.ibfchina.com - 开始
//-----------------------------------------------------------------------
function DoTitle_TopicTitle(addTopicTitle) { 
	var revisedTopicTitle; 
	var currentTopicTitle = document.forms("REPLIER").TopicTitle.value; 
	revisedTopicTitle = currentTopicTitle+addTopicTitle; 
	document.forms("REPLIER").TopicTitle.value=revisedTopicTitle; 
	document.forms("REPLIER").TopicTitle.focus(); 
	return; 
}

function DoTitle_TopicDesc(addTopicDesc) { 
	var revisedTopicDesc; 
	var currentTopicDesc = document.forms("REPLIER").TopicDesc.value; 
	revisedTopicDesc = currentTopicDesc+addTopicDesc; 
	document.forms("REPLIER").TopicDesc.value=revisedTopicDesc; 
	document.forms("REPLIER").TopicDesc.focus(); 
	return; 
}
//-----------------------------------------------------------------------
// 主题标题叙述前缀选项 - 详细信息请查看 - http://www.ibfchina.com - 结束
//-----------------------------------------------------------------------

//--------------------------------------------
// Set the help bar status
//--------------------------------------------

function hstat(msg)
{
	document.REPLIER.helpbox.value = eval( "help_" + msg );
}

// Set the number of tags open box

function cstat()
{
	var c = stacksize(bbtags);
	
	if ( (c < 1) || (c == null) ) {
		c = 0;
	}
	
	if ( ! bbtags[0] ) {
		c = 0;
	}
	
	document.REPLIER.tagcount.value = c;
}

//--------------------------------------------
// Get stack size
//--------------------------------------------

function stacksize(thearray)
{
	for (i = 0 ; i < thearray.length; i++ ) {
		if ( (thearray[i] == "") || (thearray[i] == null) || (thearray == 'undefined') ) {
			return i;
		}
	}
	
	return thearray.length;
}

//--------------------------------------------
// Push stack
//--------------------------------------------

function pushstack(thearray, newval)
{
	arraysize = stacksize(thearray);
	thearray[arraysize] = newval;
}

//--------------------------------------------
// Pop stack
//--------------------------------------------

function popstack(thearray)
{
	arraysize = stacksize(thearray);
	theval = thearray[arraysize - 1];
	delete thearray[arraysize - 1];
	return theval;
}


//--------------------------------------------
// Close all tags
//--------------------------------------------

function closeall()
{
	if (bbtags[0]) {
		while (bbtags[0]) {
			tagRemove = popstack(bbtags)
			document.REPLIER.Post.value += "[/" + tagRemove + "]";
			
			// Change the button status
			// Ensure we're not looking for FONT, SIZE or COLOR as these
			// buttons don't exist, they are select lists instead.
			
			if ( (tagRemove != 'FONT') && (tagRemove != 'SIZE') && (tagRemove != 'COLOR') )
			{
				eval("document.REPLIER." + tagRemove + ".value = ' " + tagRemove + " '");
				eval(tagRemove + "_open = 0");
			}
		}
	}
	
	// Ensure we got them all
	document.REPLIER.tagcount.value = 0;
	bbtags = new Array();
	document.REPLIER.Post.focus();
}

//--------------------------------------------
// EMOTICONS
//--------------------------------------------

function emoticon(theSmilie)
{
	doInsert(" " + theSmilie + " ", "", false);
}

//--------------------------------------------
// ADD CODE
//--------------------------------------------

function add_code(NewCode)
{
    document.REPLIER.Post.value += NewCode;
    document.REPLIER.Post.focus();
}

//--------------------------------------------
// ALTER FONT
//--------------------------------------------

function alterfont(theval, thetag)
{
    if (theval == 0)
    	return;
	
	if(doInsert("[" + thetag + "=" + theval + "]", "[/" + thetag + "]", true))
		pushstack(bbtags, thetag);
	
    document.REPLIER.ffont.selectedIndex  = 0;
    document.REPLIER.fsize.selectedIndex  = 0;
    document.REPLIER.fcolor.selectedIndex = 0;
	
}


//--------------------------------------------
// SIMPLE TAGS (such as B, I U, etc)
//--------------------------------------------

function simpletag(thetag)
{
	var tagOpen = eval(thetag + "_open");
	
	if ( get_easy_mode_state() ) {
		inserttext = prompt(prompt_start + "\n[" + thetag + "]xxx[/" + thetag + "]");
		if ( (inserttext != null) && (inserttext != "") ) {
			doInsert("[" + thetag + "]" + inserttext + "[/" + thetag + "] ", "", false);
		}
	}
	else {
		if (tagOpen == 0) {
			if(doInsert("[" + thetag + "]", "[/" + thetag + "]", true)){
				eval(thetag + "_open = 1");
				// Change the button status
				eval("document.REPLIER." + thetag + ".value += '*'");
		
				pushstack(bbtags, thetag);
				cstat();
				hstat('click_close');
			}
		}
		else {
			// Find the last occurance of the opened tag
			lastindex = 0;
			
			for (i = 0 ; i < bbtags.length; i++ ) {
				if ( bbtags[i] == thetag ) {
					lastindex = i;
				}
			}
			
			// Close all tags opened up to that tag was opened
			while (bbtags[lastindex]) {
				tagRemove = popstack(bbtags);
				doInsert("[/" + tagRemove + "]", "", false)
				
				// Change the button status
				eval("document.REPLIER." + tagRemove + ".value = ' " + tagRemove + " '");
				eval(tagRemove + "_open = 0");
			}
			
			cstat();
		}
	}
}


function tag_list()
{
	var listvalue = "init";
	var thelist = "[LIST]\n";
	
	while ( (listvalue != "") && (listvalue != null) ) {
		listvalue = prompt(list_prompt, "");
		if ( (listvalue != "") && (listvalue != null) ) {
			thelist = thelist+"[*]"+listvalue+"\n";
		}
	}

	doInsert(thelist + "[/LIST]\n", "", false);
}

function tag_url()
{
    var FoundErrors = '';
    var enterURL   = prompt(text_enter_url, "http://");
    var enterTITLE = prompt(text_enter_url_name, "My Webpage");

    if (!enterURL) {
        FoundErrors += " " + error_no_url;
    }
    if (!enterTITLE) {
        FoundErrors += " " + error_no_title;
    }

    if (FoundErrors) {
        alert("Error!"+FoundErrors);
        return;
    }

	doInsert("[URL="+enterURL+"]"+enterTITLE+"[/URL]", "", false);
}

function tag_image()
{
    var FoundErrors = '';
    var enterURL   = prompt(text_enter_image, "http://");

    if (!enterURL) {
        FoundErrors += " " + error_no_url;
    }

    if (FoundErrors) {
        alert("Error!"+FoundErrors);
        return;
    }

	doInsert("[IMG]"+enterURL+"[/IMG]", "", false);
}

function tag_email()
{
    var emailAddress = prompt(text_enter_email, "");

    if (!emailAddress) { 
		alert(error_no_email); 
		return; 
	}

	doInsert("[EMAIL]"+emailAddress+"[/EMAIL]", "", false);
}

//--------------------------------------------
// GENERAL INSERT FUNCTION
//--------------------------------------------
// ibTag: opening tag
// ibClsTag: closing tag, used if we have selected text
// isSingle: true if we do not close the tag right now
// return value: true if the tag needs to be closed later

//

function doInsert(ibTag, ibClsTag, isSingle)
{
	var isClose = false;
	var obj_ta = document.REPLIER.Post;

	if ( (myVersion >= 4) && is_ie && is_win) // Ensure it works for IE4up / Win only
	{
		if(obj_ta.isTextEdit){ // this doesn't work for NS, but it works for IE 4+ and compatible browsers
			obj_ta.focus();
			var sel = document.selection;
			var rng = sel.createRange();
			rng.colapse;
			if((sel.type == "Text" || sel.type == "None") && rng != null){
				if(ibClsTag != "" && rng.text.length > 0)
					ibTag += rng.text + ibClsTag;
				else if(isSingle)
					isClose = true;
	
				rng.text = ibTag;
			}
		}
		else{
			if(isSingle)
				isClose = true;
	
			obj_ta.value += ibTag;
		}
	}
	else
	{
		if(isSingle)
			isClose = true;

		obj_ta.value += ibTag;
	}

	obj_ta.focus();
	
	// clear multiple blanks
//	obj_ta.value = obj_ta.value.replace(/  /, " ");

	return isClose;
}	
