格式化一个url中的参数

parse_url_params.js

function parseUrlParam(url){
	var match,
	urlParams = {},
    pl     = /\+/g,  // Regex for replacing addition symbol with a space
    search = /([^&=]+)=?([^&]*)/g,
    decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); }

    var query = url || location.href
    var qus = query.indexOf('?')
    if(qus !== -1){
    	query = query.substring(qus + 1)
    }
    var sup = query.indexOf('#')
    if(sup !== -1){
    	query = query.substring(0,sup)
    }

	while (match = search.exec(query)){
		urlParams[decode(match[1])] = decode(match[2]);
	}
	return urlParams
}