I have successfully implemented a feature that replaces text as the user types into a text field. The functionality works seamlessly on Chrome, Firefox, Safari, and Opera. However, I am facing challenges with making it compatible with IE8. Despite having tailored the code for newer versions of IE, I need assistance in adapting it to work with IE8. I have decided not to focus on IE7 due to its problematic nature, but achieving compatibility with IE8 is essential.
if (document.selection && document.selection.createRange) {
var selectionRange = document.selection.createRange();
var textInputRange = element.createTextRange();
var precedingRange = element.createTextRange();
var bookmark = selectionRange.getBookmark();
textInputRange.moveToBookmark(bookmark);
precedingRange.setEndPoint('EndToStart', textInputRange);
start = precedingRange.text.length;
end = start + selectionRange.text.length;
element.value = val.slice(0, start) + 'WORKS' + val.slice(end);
start++;
textInputRange = element.createTextRange();
textInputRange.collapse(true);
textInputRange.move('character', start - (element.value.slice(0, start).split("\r\n").length - 1));
textInputRange.select();
}