实用js

function request(paras) {
            var url = location.href;
            var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");
            var paraObj = {}
            for (i = 0; j = paraString[i]; i++) {
                paraObj[j.substring(0, j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=") + 1, j.length);
            }
            var returnValue = paraObj[paras.toLowerCase()];
            if (typeof (returnValue) == "undefined") {
                return "";
            } else {
                return returnValue;
            }
        }

jQuery

如题： $(selector, window.top.document);//获得顶级窗口里面的元素;

$(selector, window.opener.document);//获得打开该窗口的父窗口里面的元素 ;

$(selector, window.parent.document);//获得父窗口里面的元素.

window.location.reload()刷新当前页面;

parent.location.reload()刷新父亲对象（用于框架）;

opener.location.reload()刷新父窗口对象（用于单开窗口）;

top.location.reload()刷新最顶端对象（用于多开窗口）.