js part of opperating the bbcode

[jeddiki]

Hi,
I want to write a js script that will wrap any text that is hıghighted in a textarea with the bbcode bold code or italics etc.

The same way that this forum post script must work.
(actually if I could find the script I could then modify it to suit my needs which would be easier )

Anyway - I am not sure how to start because how do I detect what characters are highlighted ?.

I have looked in the source code of this page for the js but can't find it :(

Can anyone help out.
Thanks

[acoder]

http://bytes.com/topic/javascript/an...ition-textarea may help.

[flydev]

I use this, its from simpleBBCode by Brady Mulhollem, the function accepts the open and close tags.

function addTags(Tag, fTag) 
{ 
  var obj = document.formname.element; 
  obj.focus(); 
  
  if (document.selection && document.selection.createRange)  // Internet Explorer 
  { 
	sel = document.selection.createRange(); 
	if (sel.parentElement() == obj)  sel.text = Tag + sel.text + fTag; 
  } 

  else if (obj != "undefined")  // Firefox 
  { 
    	var longueur = parseInt(obj.textLength); 
	var selStart = obj.selectionStart; 
	var selEnd = obj.selectionEnd; 

	obj.value = obj.value.substring(0,selStart) + Tag + obj.value.substring(selStart,selEnd) + fTag; 
  } 
  
  else obj.value += Tag + fTag; 

  obj.focus(); 
}