// JavaScript Document
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);

open_close_bold = "open";
open_close_italic = "open";
open_close_title = "open";
open_close_list = "open";
open_close_url = "open";



function insert(formName, fieldName, startTag, endTag, label) {
	eval('curr = '+'open_close'+'_'+label);
	if(curr == "open") {
		curr = "close";
		doInsert(startTag, "", false, formName, fieldName);
		eval('document.'+formName+'.'+label).value+="*";
	} else {
		doInsert(endTag, "", false, formName, fieldName);
		eval('document.'+formName+'.'+label).value=eval('document.'+formName+'.'+label).value.replace('*', '');
		curr = "open";
	}
	eval('open_close'+'_'+label+' = '+'"'+curr+'"');
}
function doInsert(ibTag, ibClsTag, isSingle, form_name, field_name)
{
	var isClose = false;
	var obj_ta=eval ('document.'+form_name+'.'+field_name);
	
	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 (document.getSelection) {  
		var text = obj_ta.value;
		var selTxt = text.substring(obj_ta.selectionStart, obj_ta.selectionEnd);

		var cursorPos = obj_ta.selectionStart;
		
		if(ibClsTag != "" && selTxt.length > 0)
			ibTag += selTxt + ibClsTag;
		else if(isSingle)
			isClose = true;
 		cursorPos += ibTag.length;
      	
		replaceSelection(obj_ta, ibTag);  
		obj_ta.focus();
		obj_ta.selectionStart = cursorPos;
		obj_ta.selectionEnd = cursorPos;      
	} 
	else
	{
		if(isSingle)
			isClose = true;

		obj_ta.value += ibTag;
	}

	obj_ta.focus();
	
	return isClose;
}	
function replaceSelection(o, s)
{
   var s2 = o.value;
   o.value = s2.substring(0, o.selectionStart) + s + s2.substr(o.selectionEnd);
}