sfHover = function() {
    var sfEls = document.getElementById("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"), "");
        }
    }
}

	
		menu_status = new Array();	
		function showHide(theid){
		    if (document.getElementById) {
		    var switch_id = document.getElementById(theid);
		
		        if(menu_status[theid] != 'show') {
		           switch_id.className = 'show';
		           menu_status[theid] = 'show';
		        }else{
		           switch_id.className = 'hide';
		           menu_status[theid] = 'hide';
		        }
		    }
		}