用户体验：让提醒更醒目的js代码

function Set_focusIn(name)
{
    var obj = $(name);
    obj.className = 'focusintext';
}
function Set_focusOut(name)
{
    var obj = $(name);
    obj.className = 'focusouttext';
}

function $(obj){    return document.getElementById(obj);}