OnClick

This will give you which row was selected:

function dme0_OnRowClick()
{
var oDME = page.objects["dme0"]
var rowRecordAry = oDME.getRowRecord()
}

I'll try to find how to tell which field within the row and get back to you.

Per Lawson:

Remarks
getRowRecord returns an array containing a field object for each field. A field object has the properties name (field name) and value (field value). The current row is used if a row argument is not passed.

Example
var oDME = page.objects["data0"];
var rowRecordAry = oDME.getRowRecord();
var oField = rowRecordAry[0];
var fieldName = oField.name;
var fieldValue = oField.value;

Yes, thanks I had found that bit of code also and I can return the entire row but i'm trying to only return the individual section of a row that the user clicks on......