Can you explain to me what you are trying to achieve? There is not such JavaScript API available. But we may have solution for your questions.

 

 

Try this:

<SCRIPT LANGUAGE=JAVASCRIPT>
function getCursorPos(textElement){
 var cursorPos = -1;
 if (textElement && textElement.createTextRange) {
  var range = document.selection.createRange().duplicate();
  range.setEndPoint('StartToEnd',range);
  var start = document.body.createTextRange();
  start.moveToElementText(textElement);
  cursorPos = calcBookmark(range.getBookmark())-calcBookmark(start.getBookmark());
  var rLen = 0;
  do{
   var BrLen = rLen;
   rLen = newLine(textElement.value.substring(0,cursorPos + rLen + 1));
  }while(BrLen!=rLen);
  cursorPos += rLen;
 }
 return cursorPos;
}
function calcBookmark(bk){
 return (bk.charCodeAt(0)-1)+(bk.charCodeAt(3)-1)*65536+(bk.charCodeAt(2)-1);
}
</SCRIPT>
<SCRIPT LANGUAGE=VBSCRIPT>
option explicit
function newLine(str)
 dim nl, r
 set nl = new RegExp
 nl.global = true
 nl.pattern = "\r\n"
 set r = nl.Execute(str)
  newLine = r.count
 set r = nothing
 set nl = nothing
end function
</SCRIPT>
If you rather like to use pure javascript, replace the newLine function with a split('\n');

You have written out the Javascript Methods but not how to call these methods.

 

What parameter would you pass into "getCursorPos(...)" in order to retrieve the caret position of the current editor?