function show(id){
  if(document.getElementById){
    document.getElementById(id).style.display="";
  }
}

function hide(id){
  if(document.getElementById){
    document.getElementById(id).style.display="none";
  }
}


function hide_all(){
    table = ["home", "services", "equip", "clients", "contact", "photos"];
    i = 0;
    while(i < 6) hide(table[i++]);
        
}

function select_tab(id){
    hide_all();
    Effect.Appear(id);
}