<html>
<head>
<title>Get/Set Caret in Textarea Example</title>
<script>
function doGetCaretPosition (ctrl) {
var CaretPos = 0;
// IE Support
if (document.selection) {
ctrl.focus ();
var Sel = document.selection.createRange ();
Sel.moveStart ('character', -ctrl.value.length);
CaretPos = Sel.text.length;
}
// Firefox support
else if (ctrl.selectionStart || ctrl.selectionStart == '0')
CaretPos = ctrl.selectionStart;
return (CaretPos);
}
function setCaretPosition(ctrl, pos)
{
if(ctrl.setSelectionRange)
{
ctrl.focus();
ctrl.setSelectionRange(pos,pos);
}
else if (ctrl.createTextRange) {
var range = ctrl.createTextRange();
range.collapse(true);
range.moveEnd('character', pos);
range.moveStart('character', pos);
range.select();
}
}
function process()
{
var no = document.getElementById('no').value;
setCaretPosition(document.getElementById('get'),no);
}
</script>
</head>
<body>
<textarea id="get" name="get" rows="5" cols="31">Please write some integer in the textbox given below and press "Set Position" button. Press "Get Position" button to get the position of cursor.</textarea>
<br>
Enter Caret Position: <input type="text" id="no" size="1" /><input type="button" onclick="process();" value="Set Position">
<BR>
<input type="button" onclick="alert(doGetCaretPosition(document.getElementById('get')));"
value="Get Position">
</body>
</html>
