// Show the normal button
function btnNormal(obj){
  if(document.images){
    obj.src = eval(obj.id+"N.src");
  }
}

// Show the button highlighted
function btnUp(obj){
  if(document.images){
    obj.src = eval(obj.id+"U.src");
  }
}

// Show the button pressed
function btnDown(obj){
  if(document.images){
    obj.src = eval(obj.id+"D.src");
  }
}

// Open a pop up
function popUp(url, width, height, winname){
//  winobj = window.open(url, winname, 'width='+width+', height='+height+', dependent=yes, menubar=no, status=no, toolbar=no, resizable=yes, scrollbars=yes');
  winobj = window.open(url, winname, 'width='+width+', height='+height+',  dependent=yes, menubar=no, status=no, toolbar=no, resizable=yes, scrollbars=yes');
  winobj.focus();
  return winobj;
}