function digitOnly(evt) {
  evt = (evt) ? evt : event;
  var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));
  if (charCode > 31 && (charCode < 48 || charCode > 57)) {
    return false;
  }

  if (charCode == 13 ) {
	document.getElementById('DataAction2').focus();
        return false;
  }
  return true;
}
function jumpNext(field, limit, next, evt) {
  evt = (evt) ? evt : event;
  var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));
  if (charCode > 31 && field.value.length == limit) {
    field.form.elements[next].focus();
//	document.getElementById(next).focus();
  }
}
function dataLink(action) {
      document.response.DataAction3.value = action;
          document.response.submit();
}
function cleanStore(noanswer_val) {
      var b = document.getElementById('r0').value;

      if( noanswer_val != '' ) {
      document.getElementById('r0').value = noanswer_val;
      }
}
function cleanSingle(noanswer_val,idx) {
      var b = document.getElementById('r0').value;
      
      if( b != noanswer_val  ) {
      	for (i=0; i< idx; i++ ){
        	name = 'r1' + i;
      		document.getElementById(name).checked = false;
      	}
      }
}