使用js獲取URL地址欄里面的參數， 獲取請求鏈接參數，函數定義如下

function getUrlRequestParam(name) {
    var paramUrl = window.location.search.substr(1);
    var paramStrs = paramUrl.split('&');
    var params = {};
    for (var index = 0; index < paramStrs.length; index++) {
        params[paramStrs[index].split('=')[0]] = decodeURI(paramStrs[index].split('=')[1]);
    }
    return params[name];
}