function scroll_timechart(direction)
 {
   if (direction == 'prev'){
     document.forms[0].direction.value = '1';
   }
   else{
     document.forms[0].direction.value = '2';
   }
   submitForm(document.forms[0].name, true, {'event':'timePickerSegment_scrollChart'});
 }

 function svgIconClicked(iconIndex, startMS, endMS)
 {
   document.forms[0].iconIndex.value = iconIndex;
   submitForm(document.forms[0].name, true, {'event':'timePickerSegment_iconClicked'});
 }

 function zoomIn()
 {
   submitForm(document.forms[0], true, {'event':'timePickerSegment_zoomIn'});
 }

 function zoomOut()
 {
   submitForm(document.forms[0], true, {'event':'timePickerSegment_zoomOut'});
 }