JavaScript DHTML/Node Operation/inRange
"inRange()" Example
<html>
<body>
<script language="JavaScript">
function function1() {
var myText = document.body.createTextRange();
var myText2 = document.all.myText.createTextRange();
alert(myText.inRange(myText2));
}
</script>
<textarea id="myText" style="width:600; height:100;">Sample textarea text</textarea>
<button onclick="function1();">InRange</button>
</body>
</html>