jequery 隐藏，显示元素

jequery
//两种方法设置disabled属性
$('#areaSelect').attr("disabled",true);
$('#areaSelect').attr("disabled","disabled");

//三种方法移除disabled属性
$('#areaSelect').attr("disabled",false);
$('#areaSelect').removeAttr("disabled");
$('#areaSelect').attr("disabled","");

js
function disableElement(element,val){
 
 document.getElementById(element).disabled=val;
 
 }