Try something like this (not valid HTML, but only used as an example for placement of script):
Code:
<html>
<head>
<script type="text/javascript">
function addMsg(text,element_id) {
document.getElementById(element_id).value += text;
}
</script>
</head>
<body>
<form method="post" action="maker.php" name="maker">
<input type="text" id="textfield" name="text" />
<input type="submit" value="Submit" />
<br>
Add these Images<br>
<a href="#" onclick="addMsg('1','textfield'); return false;"><img src="http://imageurl.com/1.gif" border="0"></a>
<a href="#" onclick="addMsg('2','textfield'); return false;"><img src="http://imageurl.com/2.gif" border="0"></a>
<a href="#" onclick="addMsg('3','textfield'); return false;"><img src="http://imageurl.com/3.gif" border="0"></a>
</form>
</body>
</html>
Simply change the parts in red (in the above code) to the text you want to add to the text field. Change the parts in blue to match the textfield id (which is in green in the above code).
Not tested, but hope this helps.
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