function bookmark(){
	var title=document.title
	var url=document.location.href
	if (window.sidebar) window.sidebar.addPanel(title, url,"");
	else if( window.opera && window.print ){
	var mbm = document.createElement('a');
	mbm.setAttribute('rel','sidebar');
	mbm.setAttribute('href',url);
	mbm.setAttribute('title',title);
	mbm.click();}
	else if( document.all ) window.external.AddFavorite( url, title);
}

function changeTag(n,obj) {
	for(i=1;i<=3;i++){
		document.getElementById("f"+i).style.display="none";
	}
	var _h2 = document.getElementById("main-col4").getElementsByTagName("h2");
	for(j=0, l=_h2.length; j < l; j++){
		_h2[j].className = "";
	}
	document.getElementById("f"+n).style.display="block";
	obj.className="on";
}