1 function parseURL(url) { 2     var a =  document.createElement('a'); 3     a.href = url; 4     return { 5         source: url, 6         protocol: a.protocol.replace(':',''), 7         host: a.hostname, 8         port: a.port, 9         query: a.search,10         params: (function(){11             var ret = {},12                 seg = a.search.replace(/^\?/,'').split('&'),13                 len = seg.length, i = 0, s;14             for (;i<len;i++) {15                 if (!seg[i]) { continue; }16                 s = seg[i].split('=');17                 ret[s[0]] = s[1];18             }19             return ret;20         })(),21         file: (a.pathname.match(/\/([^\/?#]+)$/i) || [,''])[1],22         hash: a.hash.replace('#',''),23         path: a.pathname.replace(/^([^\/])/,'/$1'),24         relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [,''])[1],25         segments: a.pathname.replace(/^\//,'').split('/')26     };27 }

 1 var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top'); 2    3 myURL.file;     // = 'index.html' 4 myURL.hash;     // = 'top' 5 myURL.host;     // = 'abc.com' 6 myURL.query;    // = '?id=255&m=hello' 7 myURL.params;   // = Object = { id: 255, m: hello } 8 myURL.path;     // = '/dir/index.html' 9 myURL.segments; // = Array = ['dir', 'index.html']10 myURL.port;     // = '8080'11 myURL.protocol; // = 'http'12 myURL.source;   // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'

 1 var getParam = function(path){ 2     var result = {},param = /([^?=&]+)=([^&]+)/ig,match; 3     while((match = param.exec(path)) != null){ 4         result[match[1]] = match[2]; 5     } 6     return result; 7 } 8   9 Object.keys = Object.keys || function(obj){10     var result = [];11     for(var i in obj){12         if(obj.hasOwnProperty(i)){13             result.push(i)14         }15     }16     return result;17 }18 var path = "http://tieba.baidu.com/f?ct=318767104&tn=baiduKeywordSearch&sc=1&pn=0&rn=50&lm=4&rs4=2&rs3=2&word=%D0%C2%BE%D3%D5%D1%C4%CB&frs=jpq";19  20 var r = getParam(path);21 alert(Object.keys(r))//ct,tn,sc,pn,rn,lm,rs4,rs3,word,frs

//2010.9.22更新function getParam(name){//获取参数值 by司徒正美    var sUrl = window.location.search.substr(1);var r = sUrl.match(new RegExp("(^|&)" + name + "=([^&]*)(&|$)"));return (r == null ? null : unescape(r[2]));}