function showHideDiv()  {
  var radio_standard = document.getElementById('standard_mode');
  var radio_loop = document.getElementById('loop_mode');
  var radio_SR140 = document.getElementById('SR140');
  var div_standard = document.getElementById('div_standard');
  var div_loop = document.getElementById('div_loop');   
  
  if(radio_standard.checked==true || radio_SR140.checked==true)
  	{div_standard.style.display = 'block';}
  else if(radio_standard.checked==false  || radio_SR140.checked==false)
  	{div_standard.style.display = 'none';}	

  if(radio_loop.checked==true)
  	{div_loop.style.display = 'block';}   
  else if(radio_loop.checked==false)
  	{div_loop.style.display = 'none';}

}