sfHover = function() {
    var sfEls = document.getElementById("header-nav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
    sfEls[i].onmouseover=function() {
    this.className+=" sfhover";
    }
    sfEls[i].onmouseout=function() {
    this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
    }
    }
    }
    window.onload=sfHover;

	function setTab(name,cursel,n){
	for(i=1;i<=n;i++){
	var menu=document.getElementById(name+i);
	var con=document.getElementById("con_"+name+"_"+i);
	menu.className=i==cursel?"hover":"";
	con.style.display=i==cursel?"block":"none";
	}
	}