function addEvent(obj,evType,fn){if(obj.addEventListener){obj.addEventListener(evType,fn,false);return true;}else if(obj.attachEvent){return obj.attachEvent('on'+evType,fn);}return false;}
function wfg_dental_generic_load_events(){
addEvent(document.getElementById('button_a'),'click',function(){
  document.getElementById('dental_generic_b_container').style.display="none";
  document.getElementById('dental_generic_c_container').style.display="none";
  document.getElementById('dental_generic_a_container').style.display="block";});
addEvent(document.getElementById('button_b'),'click',function(){
  document.getElementById('dental_generic_b_container').style.display="block";
  document.getElementById('dental_generic_c_container').style.display="none";
  document.getElementById('dental_generic_a_container').style.display="none";});
addEvent(document.getElementById('button_c'),'click',function(){
  document.getElementById('dental_generic_a_container').style.display="none";
  document.getElementById('dental_generic_b_container').style.display="none";
  document.getElementById('dental_generic_c_container').style.display="block";});
}
addEvent(window,'load',wfg_dental_generic_load_events);