获取页面url参数

function getRequest() {
    var url = location.search; //获取url中"?"符后的字串
    var theRequest = new Object();
    if (url.indexOf("?") != -1) {
        var str = url.substr(1);
        strs = str.split("&");
        for (var i = 0; i < strs.length; i++) {
            var start = strs[i].indexOf("=") + 1;
            theRequest[strs[i].split("=")[0]] = decodeURI(strs[i].slice(start,strs[i].length));
        }
    }
    return theRequest;
}