<td><input name="f_compra" type="text" id="dateArrival" onClick="popUpCalendar(this, form1.dateArrival, 'mm/dd/yyyy');" size="25"></td>
he probaco con:
Código PHP:
echo '<td><input name="f_compra" type="text" id="dateArrival" onClick="popUpCalendar(this, form1.dateArrival, 'mm/dd/yyyy');" size="25"></td>';