SO - 17059385

by Arun P Johny

HTML

<input type="text" id="txt1" class="search-bar-input" onkeyup="handleKeyPress(event, 'btn1');">

JavaScript

function handleKeyPress(event) {
    event = event || window.event //For IE
    if (event.keyCode === 13) {
        alert(event.keyCode);
    }
}