function menuActivate(a,b){
	var td = document.getElementById(a);
	var elem = document.getElementById(b);
	td.className = 'td_active';
	elem.className = 'menu_active';
}

function menuDeactivate(a,b,c,d){
	var td = document.getElementById(a);
	var elem = document.getElementById(b);
	td.className = d;
	elem.className = c;
}

var zxcTO;

function Scroll(id,dis,pos){
var obj=document.getElementById(id)
obj.scrollTop=obj.scrollTop+dis;
if (pos){obj.scrollTop=pos; }
else {zxcTO=setTimeout( function(){ Scroll(id,dis); },50); }
}