function addPageBookmark(title, url) {
	
        if (window.sidebar) { // firefox
              window.sidebar.addPanel(title, url,"");
        } else if( document.all ) { //MSIE
                window.external.AddFavorite( url, title);
        } else {
               alert("Sorry, your browser doesn't support this");
        }
}

function showBlock(id) {

   var elm = document.getElementById(id);
   if (elm) {
     elm.style.display = 'inline';
   }
}

function hideBlock(id) {
   var elm = document.getElementById(id);
   if (elm) {
     elm.style.display = 'none';
   }
}