var url = document.URL;
  var who = document.title;
  var ver = navigator.appName;
  var num = parseInt(navigator.appVersion);

function bookmark(txt) {
	 if(ver == "Microsoft Internet Explorer" && window.external) { // IE
		   var result = '<a id="bookmarklink" href="#" onclick="window.external.AddFavorite(url,who);" ';
		   result += '>'+ txt + '</a>';
	 } else if((typeof window.sidebar == 'object') && (typeof window.sidebar.addPanel == 'function'))  {  //GECKO
		   var result = '<a id="bookmarklink" href="#" onclick="window.sidebar.addPanel(who, url,\'\');"';
		   result += '>'+ txt + '</a>';
	 } else if(ver == "Opera") {
		   var result = '<a id="bookmarklink" href="' + url;
		   result += '" title="' + who;
		   result += '" rel="sidebar">' + txt;
		   result += '</a>';
	 } else {
	   	   var result = "";
	 } 
	 return result;
}