This code you referenced works fine when called with the custom type in Medialab. How do we now modify this code so the x and y values get stored back into Medialab DATA instead of being displayed on the screen? At the moment there is no "continue" or submit item to return to the next line in the Medialab questionnaire. Thanks so much for your help.

Code so far:
<html>
<head>
<script language="JavaScript">
function point_it(event){
pos_x = event.offsetX?(event.offsetX):event.pageX-document.getElementById("pointer_div").offsetLeft;
pos_y = event.offsetY?(event.offsetY):event.pageY-document.getElementById("pointer_div").offsetTop;
document.getElementById("cross").style.left = (pos_x-1) ;
document.getElementById("cross").style.top = (pos_y-15) ;
document.getElementById("cross").style.visibility = "visible" ;
document.pointform.form_x.value = pos_x;
document.pointform.form_y.value = pos_y;
}
</script>
</head>
<body>
<form name="pointform" method="post">
<div id="pointer_div" onclick="point_it(event)" style = "background-image:url('sun.jpg');width:500px;height:333px;">
<img src="point.gif" id="cross" style="position:relative;visibility:hidden;z-index:2;"></div>
You pointed on x = <input type="text" name="form_x" size="4" /> - y = <input type="text" name="form_y" size="4" />
</form>
</body>
</html>