var ClientPC=navigator.userAgent.toLowerCase();
var ClientVer=parseInt(navigator.appVersion);
var IsIE=((ClientPC.indexOf("msie") != -1) && (ClientPC.indexOf("opera")==-1));
var IsWin=((ClientPC.indexOf("win")!=-1) || (ClientPC.indexOf("16bit") != -1));

function RowsTextarea(n,w){
	var inrows=document.getElementById(n);
	if(w < 1){
		var rows=-5;
	}else{
		var rows=+5;
	}
	var outrows=inrows.rows+rows;
	if(outrows >= 5 && outrows < 50){
		inrows.rows=outrows;
	}
	return false;
}
function AddIE(Open,Close){
	if(SelField.createTextRange && SelField.caretPos && Close=='\n'){
		var caretPos=SelField.caretPos;
		caretPos.text=caretPos.text.charAt(caretPos.text.length - 1)==' ' ? Open+Close+' ' : Open+Close;
		SelField.focus();
	}else if(SelField.caretPos){
		SelField.caretPos.text=Open+SelField.caretPos.text+Close;
	}else{
		SelField.value += Open+Close;
		SelField.focus();
	}
}
function AddMoz(txtarea,Open,Close){
	var selLength=txtarea.textLength;
	var selStart=txtarea.selectionStart;
	var selEnd=txtarea.selectionEnd;
	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+Open+s2+Close+s3;
	txtarea.focus();
	return;
}
function smile(code,area){
	if((ClientVer >= 4) && IsIE && IsWin){
		AddIE('*'+code,'');
	}else{
		var txtarea=document.getElementById(area);
		AddMoz(txtarea,'*'+code,'');
	}	
}
function insert(code,info,type,error,area,align,title){
	if((ClientVer >= 4) && IsIE && IsWin){
		if(code=='name'){
			AddIE('[b]'+info+'[/b]',',');
		}else if(code=='url' || code=='mail'){
			if(code=='url') var url=prompt(info,'http://');
			if(code=='mail') var url=prompt(info,'');
			if(!url) return alert(error);
			selection=document.selection.createRange().text;
			if(!selection){
				var title=prompt(type,type);
				AddIE('['+code+'='+url+']'+title+'[/'+code+']','\n');
			}else{
				AddIE('['+code+'='+url+']','[/'+code+']');
			}
		}else if(code=='color' || code=='family' || code=='size'){
			AddIE('['+code+'='+info+']','[/'+code+']');
		}else if(code=='li' || code=='hr'){
			AddIE('['+code+']','');
		}else if(code=='attach'){
			AddIE(txtarea,'['+code+':'+info+' align='+align+']'+title+'[/'+code+']','\n');
		}else{
			var selection=false;
			selection=document.selection.createRange().text;
			if(selection && code=='quote'){
				AddIE('['+code+']'+selection+'[/'+code+']','\n');
			}else{
				if(code=='img' && info && type){
					AddIE('['+code+':'+info+';'+type+'/]','\n');
				}else if(code=='img'){
					AddIE('['+code+':',';/]');
				}else{
					AddIE('['+code+']','[/'+code+']');
				}
			}
		}
	}else{
		var txtarea=document.getElementById(area);
		if(code=='name'){
			AddMoz(txtarea,'[b]'+info+'[/b]',',');
		}else if(code=='url' || code=='mail'){
			if(code=='url')
				var
					url=prompt(info,'http://');
			if(code=='mail')
				var
					url=prompt(info,'');
			if(!url)
				return
					alert(error);
			if(txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart <= 0)){
				var title=prompt(type,type);
				AddMoz(txtarea,'['+code+'='+url+']'+title+'[/'+code+']','\n');
			}else{
				AddMoz(txtarea,'['+code+'='+url+']','[/'+code+']');
			}
		}else if(code=='ul' || code=='ol'){
			AddMoz(txtarea,"["+code+"]\r[*]\r[*]\r[*]\r",'[/'+code+']');
		}else if(code=='li'){
			AddMoz(txtarea,"[*]\n",'');
		}else if(code=='color' || code=='family' || code=='size'){
			AddMoz(txtarea,'['+code+'='+info+']','[/'+code+']');
		}else if(code=='li' || code=='hr' || code=='br'){
			AddMoz(txtarea,'['+code+']','');
		}else if(code=='attach'){
			AddMoz(txtarea,'['+code+':'+info+']'+title+'[/'+code+']','\n');
		}else if(code=='code' && info){
			AddMoz(txtarea,info,'');
		}else{
			if(code=='img' && info && type){
				AddMoz(txtarea,'['+code+':'+info+';'+type+'/]','\n');
			}else if(code=='img' && info && !type){
				AddMoz(txtarea,'['+code+':'+info+';/]','\n');
			}else if(code=='img'){
				AddMoz(txtarea,'['+code+':',';/]');
			}else{
				AddMoz(txtarea,'['+code+']','[/'+code+']');
			}
		}
	}
}