var bbtags   = new Array();
var fombj    = document.addanswer;

var  tagtext=new Array();
var  tagtext2=new Array();
tagtext["b"]="Жирный текст";
tagtext["i"]="Курсив";
//tagtext["url"]="Ссылка";
tagtext["url"]="Адрес ссылки";
tagtext2["url"]="Текст ссылки";

function add_code(NewCode)
{
    fombj.tgxatrbage.value += NewCode;
    fombj.tgxatrbage.focus();
}


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

function simpletag(thetag)
{
	inserttext = prompt(tagtext[thetag]+"\n[" + thetag + "]xxx[/" + thetag + "]");
	if ( (inserttext != null) && (inserttext != "") )
	{
		doInsert("[" + thetag + "]" + inserttext + "[/" + thetag + "] ", "", false);
	}
}

function wraptag(thetag)
{
	var first = prompt(tagtext[thetag]);
	var second = prompt(tagtext2[thetag]);
	//inserttext = prompt(tagtext[thetag]+"\n[" + thetag + "]xxx[/" + thetag + "]");
	if ( (first != null) && (second != "") )
	{
		doInsert("[" + thetag + "="+first+"]" + second + "[/" + thetag + "] ", "", 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 = fombj.tgxatrbage;
	
	//----------------------------------------
	// It's IE!
	//----------------------------------------
	if ( (ua_vers >= 4) && is_ie && is_win)
	{
		if (obj_ta.isTextEdit)
		{
			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;
		}
	}
	//----------------------------------------
	// It's MOZZY!
	//----------------------------------------
	
	else if ( obj_ta.selectionEnd )
	{ 
		var ss = obj_ta.selectionStart;
		var st = obj_ta.scrollTop;
		var es = obj_ta.selectionEnd;
		
		if (es <= 2)
		{
			es = obj_ta.textLength;
		}
		
		var start  = (obj_ta.value).substring(0, ss);
		var middle = (obj_ta.value).substring(ss, es);
		var end    = (obj_ta.value).substring(es, obj_ta.textLength);
		
		//-----------------------------------
		// text range?
		//-----------------------------------
		
		if (obj_ta.selectionEnd - obj_ta.selectionStart > 0)
		{
			middle = ibTag + middle + ibClsTag;
		}
		else
		{
			middle = ibTag + middle;
			
			if (isSingle)
			{
				isClose = true;
			}
		}
		
		obj_ta.value = start + middle + end;
		
		var cpos = ss + (middle.length);
		
		obj_ta.selectionStart = cpos;
		obj_ta.selectionEnd   = cpos;
		obj_ta.scrollTop      = st;


	}
	//----------------------------------------
	// It's CRAPPY!
	//----------------------------------------
	else
	{
		if (isSingle)
		{
			isClose = true;
		}
		
		obj_ta.value += ibTag;
	}
	
	obj_ta.focus();

	return isClose;
}