var lastViewTabID = '0'; 

  function setDisplay(divElement){
    var divE = document.getElementById(divElement);
    if (divE.style.display == "none")
      divE.style.display = "";
    else
      divE.style.display = "none";
  }
  
  function setClass(divElement){
    var divE = document.getElementById(divElement);
    if (divE.className == 'tabActive'){
      divE.className = 'tabInactive';
      divE.getElementsByTagName('IMG')[0].src = 'tabs/tab_left_inactive.gif';
      divE.getElementsByTagName('IMG')[1].src = 'tabs/tab_right_inactive.gif';
    }
    else{
      divE.className = 'tabActive';
      divE.getElementsByTagName('IMG')[0].src = 'tabs/tab_left_active.gif';
      divE.getElementsByTagName('IMG')[1].src = 'tabs/tab_right_active.gif';
    }
  }
  
  function showTab(id){
    if (document.getElementById('tabView'+id))
    if (lastViewTabID != id){
      setDisplay('tabView'+lastViewTabID);
      setDisplay('tabView'+id);
      
      setClass('tabTab'+lastViewTabID);
      setClass('tabTab'+id);
      //alert(document.getElementById('tabView'+id).clientHeight);
      
      var divE = document.getElementById('correctionDiv');
      /*
      if (window.XMLHttpRequest)
        divE.style.height= (document.getElementById('tabView'+id).offsetHeight - 200)+"px";
      else
        divE.style.height= (document.getElementById('tabView'+id).offsetHeight - 248)+"px";
      */
      //alert(divE.style.height);
      lastViewTabID = id;
    }
  }