Question

I don’t want to highlight text (by changing background color to yellow – NO), I just want to select a portion of the text inside textarea, exactly as if the user clicked and hold the click then moved the mouse to highlight only a portion of the text

How to do that? is it possible?

Answer 1

http://help.dottoro.com/ljtfkhio.php

Example 1 would be relevant in your case:

        function Select () {
            var input = document.getElementById ("myText");
            if (input.selectionStart === undefined) {   // Internet Explorer
                var inputRange = input.createTextRange ();
                inputRange.moveStart ("character", 1);
                inputRange.collapse ();
                inputRange.moveEnd ("character", 1);
                inputRange.select ();
            }
            else {      // Firefox, Opera, Google Chrome and Safari
                input.selectionStart = 1;
                input.selectionEnd = 2;
                input.focus ();
            }
        }