// JavaScript Document
    function flexMenu(id)
    {
     var $id = document.getElementById(id);
     var titleList = $id.getElementsByTagName('h2');
     var contentList = $id.getElementsByTagName('div');
     titleList[titleList.length-1].style.border = 'none';
     for(var i=0;i<titleList.length;i++)
     {   
      titleList[i].onclick = function()
      {
		   
       for(var a=0;a<contentList.length;a++)
       {
        contentList[a].style.display = 'none';
       }
       if(this.nextSibling.nodeType=='3')
       {
            this.nextSibling.nextSibling.style.display = '';
            
            var liobjs = this.nextSibling.nextSibling.getElementsByTagName("li")
            if(liobjs.length>0){
                var liheight = 28;
		        this.nextSibling.nextSibling.style.height = liheight*((liobjs.length+1)/2)+'px';
		    }
       }else
       {
            this.nextSibling.style.display = '';
		    var liobjs = this.nextSibling.getElementsByTagName("li")
            if(liobjs.length>0){
                var liheight = 28;
		        this.nextSibling.style.height = liheight*((liobjs.length+1)/2)+'px';
		    }
       }
	   
      }
     }
    }
    window.onload = function(){ flexMenu('box')}