a标签带参数跳转 获取url参数

<a href="ChengXing.aspx?action=chaxun" id="chaxun">查询</a>

function getUrlParam(name) {//a标签跳转获取参数
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return (r[2]); return null;
}

$(function () {
    var action = getUrlParam('action');
    if (action == "chaxun") {
        //coding...
    }
});