//function showBlock(blockId)
//  {
//    document.getElementById(blockId).style.display = "block";
//  }
//  function hideBlock(blockId)
//  {
//    document.getElementById(blockId).style.display = "none";
//  }

var hidden='advanced_search';
  function showHide(){
    var advanced_search = document.getElementById('advanced_search');
    var quick_search = document.getElementById('quick_search');
    // check whats hidden
    if(hidden=='advanced_search')
    {
        quick_search.style.display='none';
        advanced_search.style.display='block';
        hidden='quick_search';
    }
    else if(hidden=='quick_search')
    {
        quick_search.style.display='block';
        advanced_search.style.display='none';
        hidden='advanced_search';
    }

  }