<script language="javascript">
function insertAtCursor(myField, myValue) {
//IE support
if (document.selection) {
myField.focus();
sel = document.selection.createRange();
sel.text = myValue;
}
//MOZILLA/NETSCAPE support
else if (myField.selectionStart || myField.selectionStart == '0') {
var startPos = myField.selectionStart;
var endPos = myField.selectionEnd;
myField.value = myField.value.substring(0, startPos)
+ myValue
+ myField.value.substring(endPos, myField.value.length);
} else {
myField.value += myValue;
}
}
</script>
<img src="emotikona.gif" title=":)" onclick="insertAtCursor(formularz.komentarz, ':)')" alt=":)" style="" border="0">
<form id="formularz"><textarea id="komentarz"></textarea><form>

       <script type="text/javascript" src="lokalizacja skryptu">
       </script>