function showList() {
   var obj = document.getElementById('progButtons');
   var upList = document.getElementById('myList');
   var x = 0;
   var y = obj.offsetHeight;

   do {
    x += obj.offsetLeft;
    y += obj.offsetTop;
   } while (typeof(obj = obj.offsetParent) != 'undefined' && obj != null);

   if(myList.style.display != 'none'){
    myList.style.display = 'none'
   }
   else {
    myList.style.display = 'inline'
    myList.style.left = x-1;
    myList.style.top = y;
   }
}


function closeMenu() {
  var myList = document.getElementById('myList');
    myList.style.display='none';
}



function showMenu() {
  var popupmenu = document.getElementById('myList');
    myList.style.display='inline';
}


img1=new Image; img1.src="files/navigation/red.gif";
img2=new Image; img2.src="files/navigation/green.gif";
img3=new Image; img3.src="files/navigation/tosol.gif";