$(function(){

      var tmp3=null;

    $("#menu ul li a").each(function(index){
      var tmp1=index;
      tmp3=tmp3+1;
      $(this).click(function(){
	slideonlyone('content_'+tmp1,this);
      });
    });

    $("#footer a").each(function(index){
      var tmp2=index+tmp3;
      $(this).click(function(){
	slideonlyone('content_'+tmp2,this);
      });
    });

  });

  var prev_style=null;

  function slideonlyone(menu_click,menu_clicked) {
    if(prev_style!=null){
      prev_style.className="";
    }
    menu_clicked.className="current";
    prev_style=menu_clicked;  
    $('.content').each(function(index) {
	if ($(this).attr("id") == menu_click) {
	      $(this).slideDown(200);
	}
	else {
	      $(this).slideUp(600);
	}
    });
  }