ronmichael

// http://stackoverflow.com/questions/6930578/get-cursor-or-text-position-in-pixels-for-input-element/7948715#7948715


function getTextBoundingRect(input, selectionStart, selectionEnd, debug) {
    // Basic parameter validation
    if (!input || !('value' in input)) return input;
    if (typeof selectionStart == "string") selectionStart = parseFloat(selectionStart);
    if (typeof selectionStart != "number" || isNaN(selectionStart)) {
        selectionStart = 0;
    }