javascript parseUrl函数(来自国外的获取网址url参数)

function parseURL(url) { 
	var a = document.createElement('a'); 
	a.href = url; 
	return { 
		source: url, 
		protocol: a.protocol.replace(':',''), 
		host: a.hostname, 
		port: a.port, 
		query: a.search, 
		params: (function(){ 
			var ret = {}, 
			seg = a.search.replace(/^?/,'').split('&'), 
			len = seg.length, i = 0, s; 
			for (;i<len;i++) { 
				if (!seg[i]) { continue; } 
				s = seg[i].split('='); 
				ret[s[0]] = s[1]; 
			} 
			return ret; 
		})(), 
		file: (a.pathname.match(//([^/?#]+)$/i) || [,''])[1], 
		hash: a.hash.replace('#',''), 
		path: a.pathname.replace(/^([^/])/,'/$1'), 
		relative: (a.href.match(/tps?://[^/]+(.+)/) || [,''])[1], 
		segments: a.pathname.replace(/^//,'').split('/') 
	}; 
} 

使用示例:

var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top'); 
myURL.file; // = 'index.html' 
myURL.hash; // = 'top' 
myURL.host; // = 'abc.com' 
myURL.query; // = '?id=255&m=hello' 
myURL.params; // = Object = { id: 255, m: hello } 
myURL.path; // = '/dir/index.html' 
myURL.segments; // = Array = ['dir', 'index.html'] 
myURL.port; // = '8080' 
myURL.protocol; // = 'http' 
myURL.source; // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top' 

来源:http://www.jb51.net/article/23881.htm