function swapDiv(){
  var user_type = document.getElementById('user_type').value
  
  switch(user_type){
    case '0':
      hideElement('school_div');
      hideElement('company_div');
      hideElement('position_div');    
      break;
    case '1':
      hideElement('school_div');
      showElement('company_div');
      showElement('position_div');    
      break;    
    case '2':
      hideElement('school_div');
      showElement('company_div');
      hideElement('position_div');    
      break;
    case '3':
      hideElement('school_div');
      hideElement('company_div');
      hideElement('position_div');   
      break;
    case '4':
      hideElement('school_div');
      hideElement('company_div');
      hideElement('position_div');      
      break;
    case '5':
      showElement('school_div');
      hideElement('company_div');
      hideElement('position_div');    
      break;
  }  
}