<script type="text/javascript">
function replaceSmileys() {
var string = document.getElementById('smileys').innerHTML;
string = string.replace(/:-\)/g, "Happy");
string = string.replace(/:-\(/g, "Traurig");
document.getElementById('smileys').innerHTML = string;
}
window.onload = replaceSmileys;
</script>
<div id="smileys"> Hi. :-)
Ich bin ein Blindtext. :-(</div>