var menunr = 1;

    function bemutat(nr) {  
          document.getElementById("e11lc1leftb1").innerHTML = document.getElementById("tartalom"+nr).innerHTML
          for (i=1; i<=5; i++) {
             document.getElementById("idbemutat"+i).style.color = "#040";
             if (nr != i) document.getElementById("idbemutat"+i).style.backgroundImage = "url(bemutato/image/otmenuback.jpg)";
          }
          document.getElementById("idbemutat"+nr).style.color = "#fff";
          menunr = nr ;
    }

        function bekapcs(nr) {  
          document.getElementById("idbemutat"+nr).style.color = "#fff";
          document.getElementById("idbemutat"+nr).style.backgroundImage = "url(bemutato/image/backvzold.gif)";
    }

        function kikapcs(nr) {  
          if (menunr != nr) document.getElementById("idbemutat"+nr).style.color = "#040";
          if (menunr != nr) document.getElementById("idbemutat"+nr).style.backgroundImage = "url(bemutato/image/otmenuback.jpg)";
    }