getting selected text in an input field in IE8 and above

Question

How do I get the selected text in an input field in IE8 and above versions. I have tried using window.getSelection() document.getSelection() and document.selection.createRange().text. Last one is returning empty string and the others are undefined in IE8.

Answer 1

Finally I found the solution as, input.selection.createRange().text.

Answer 2

var input= document.getElementById("id_of_input");
var selectedtext=input.value.substring(input.selectionStart,input.selectionEnd);