问获取事件: JavaScript中的"focus out“

EN

var menage_ul=function(ev, label, value)
{
    if(value!=null) //if it is 'click' or 'keyup'
    {
        var names_to_show=user_names.filter(function(name){
            return name.indexOf(value)==0;
        });
        create_ul(label, names_to_show);
    }
    else if(value===null)//if it is 'change'
    {
        create_ul(label, new Array());
    }
    else//if it is 'keypress'
    {
        if(ev.which===13)//if pressed enter
        {
            if(label.className==='save_as')
            {
                save_as();
            }
            else if(label.className==='open')
            {
                open();
            }
            else{}
        }
    }
};

input.addEventListener('click', function(ev){menage_ul(ev, label, input.value);}, false);
input.addEventListener('keyup', function(ev){menage_ul(ev, label, input.value);}, false);
input.addEventListener('change', function(ev){menage_ul(ev, label, null);}, false);
input.addEventListener('keypress', function(ev){menage_ul(ev, label);}, false);