<script>

function oneSelected(listBox, msg) {

 for (var y=0; y<listBox.length; y++){
    if ( listBox.options[y].selected == true ) return true;
 }

 alert(msg);
 return false;
}



function doSubmit() {

 // validate

 // handler cron
 if (document.editinterface.SchedType[1].checked == true ) {

  if ( ! oneSelected(document.editinterface.probe_min, 
   	             "You must set at least one 'Minutes to Run' item") ) return false;

  if ( ! oneSelected(document.editinterface.probe_hr, 
   	             "You must set at least one 'Hours to Run' item") ) return false;

  if ( ! oneSelected(document.editinterface.probe_day, 
   	             "You must set at least one 'Days to Run' item") ) return false;

  if ( ! oneSelected(document.editinterface.probe_mon, 
   	             "You must set at least one 'Months to Run' item") ) return false;

  if ( ! oneSelected(document.editinterface.probe_dow, 
   	             "You must set at least one 'Days of Week to Run' item") ) return false;

 }// end if

 // maint cron
 if (document.editinterface.Maint.checked == true ) {

  if ( ! oneSelected(document.editinterface.maint_min, 
   	             "You must set at least one 'Minutes Unavailable' item") ) return false;

  if ( ! oneSelected(document.editinterface.maint_hr, 
   	             "You must set at least one 'Hours Unavailable' item") ) return false;

  if ( ! oneSelected(document.editinterface.maint_day, 
   	             "You must set at least one 'Days Unavailable' item") ) return false;

  if ( ! oneSelected(document.editinterface.maint_mon, 
   	             "You must set at least one 'Months Unavailable' item") ) return false;

  if ( ! oneSelected(document.editinterface.maint_dow, 
   	             "You must set at least one 'Days of Week Unavailable' item") ) return false;

 }// end if

 return true ;
}

</script>
<form name=editinterface action=/nodes/edit method=post onSubmit='return doSubmit();' >

<input type=hidden name=context value='interface'> 
<input type=hidden name=update value=1 >
<input type=hidden name=id value=%d>

<table align=center>

<tr>
 <th colspan=2><H2>Edit Interface <em>%s</em></H2></th> 
</tr>

<tr>
