// JavaScript Document
function lscat(f){
  var cal=document.getElementById('scat');
  for (i=1;i<18;i++){
  document.getElementById(i).style.visibility="hidden";
	}
    for (i=0;i<f.elements.length;i++){
      if (f.elements[i].name=='sscat')  f.elements[i].selectedIndex=0;
      }
	f.elements['souscat'].value='-2';

  if (f.elements['cat'].options[f.elements['cat'].selectedIndex].value=='-2'){
    	f.elements['souscat'].value='-2';
    for (i=0;i<f.elements.length;i++){
      if (f.elements[i].name=='sscat')  f.elements[i].selectedIndex=0;
      }
   } 
  else { 
  
  document.getElementById(f.elements.cat.options[f.elements.cat.selectedIndex].value).style.visibility="visible";
  }


}