var jshover = function(){
  var nodes = document.getElementById("hor").getElementsByTagName("li");  
  for (var i=0; i<nodes.length; i++){
	nodes[i].onmouseover = function(){
	  this.className = "jshover";
	}	
	nodes[i].onmouseout = function(){
	  this.className = '';
	}
  }
}
var jsvhover = function(){
  var nodes = document.getElementById("vertical").getElementsByTagName("li");  
  for (var i=0; i<nodes.length; i++){
	nodes[i].onmouseover = function(){
	  this.className = "jsvhover";
	}	
	nodes[i].onmouseout = function(){
	  this.className = '';
	}
  }
}