function DoSearch(TxbName,e)
  {   
        var txb=document.getElementById(TxbName);
        var searchWord;
        searchWord = txb.value;
            
        if(searchWord.length != 0 && searchWord!='Pesquisar')
            location.href = '/Pesquisas/Pages/Results.aspx?k=' + searchWord;  
        else
            alert('Por favor introduza os termos que deseja pesquisar.');
  };
  
  function FireSearch(TxbName,event)
  {   
        if(event.keyCode == 13)
        {
            DoSearch(TxbName,event);          
            event.returnValue = false;
        }
        else
            event.returnValue = true;
  };
  
  function TxtFocus(TxbName,event)
  {
    var txb=document.getElementById(TxbName);
    if(txb.value == "Pesquisar")
        txb.value  = '';
  };
  
  function TxtBlur(TxbName,event)
  {
   var txb=document.getElementById(TxbName);
    if(txb.value.length==0 || txb.value==null)
        txb.value="Pesquisar";
  };