var  exampleCurrentId = 1;
function openExample(id) {
  if (id != exampleCurrentId && document.getElementById) {
    document.getElementById('ex_picture'+exampleCurrentId).style.display = "none";
    document.getElementById('ex_picture'+id).style.display = "block";
    document.getElementById('ex_text'+exampleCurrentId).style.display = "none";
    document.getElementById('ex_text'+id).style.display = "block";
    exampleCurrentId = id; 
  }
}

function showBorder(id) {
  if (document.getElementById) {
    document.getElementById('menu_image_'+id).style.borderStyle = "inset";
  }
}
function removeBorder(id) {
  if (document.getElementById) {
    document.getElementById('menu_image_'+id).style.borderStyle = "outset";
  }
}

function openSmallWindow(pageURL,w,h) 
{
  smallWindow = window.open(pageURL,"","toolbar=0,scrollbars=0,width="+w+",height="+h);
  if (!(navigator.appName.indexOf("Microsoft") != -1 && (navigator.appVersion.charAt(0)=='4') ))
     smallWindow.focus();
}